51849438094681 has 8 divisors (see below), whose sum is σ = 51859564953984. Its totient is φ = 51839311857360.

The previous prime is 51849438094669. The next prime is 51849438094693. The reversal of 51849438094681 is 18649083494815.

51849438094681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51849438094669) and next prime (51849438094693).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51849438094681 - 2¹⁵ = 51849438061913 is a prime.

It is a super-2 number, since 2×51849438094681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51849438094681.

It is not an unprimeable number, because it can be changed into a prime (51849438094661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188521936 + ... + 188796766.

It is an arithmetic number, because the mean of its divisors is an integer number (6482445619248).

Almost surely, 2^{51849438094681} is an apocalyptic number.

It is an amenable number.

51849438094681 is a deficient number, since it is larger than the sum of its proper divisors (10126859303).

51849438094681 is a wasteful number, since it uses less digits than its factorization.

51849438094681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310991.

The product of its (nonzero) digits is 238878720, while the sum is 70.

The spelling of 51849438094681 in words is "fifty-one trillion, eight hundred forty-nine billion, four hundred thirty-eight million, ninety-four thousand, six hundred eighty-one".