51411641151621 has 8 divisors (see below), whose sum is σ = 68548894474144. Its totient is φ = 34274407631760.

The previous prime is 51411641151617. The next prime is 51411641151701. The reversal of 51411641151621 is 12615114611415.

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

It is not a de Polignac number, because 51411641151621 - 2² = 51411641151617 is a prime.

It is a super-2 number, since 2×51411641151621² (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 51411641151621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51411641151601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2873751 + ... + 10539531.

It is an arithmetic number, because the mean of its divisors is an integer number (8568611809268).

Almost surely, 2^{51411641151621} is an apocalyptic number.

It is an amenable number.

51411641151621 is a deficient number, since it is larger than the sum of its proper divisors (17137253322523).

51411641151621 is a wasteful number, since it uses less digits than its factorization.

51411641151621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9901331.

The product of its digits is 28800, while the sum is 39.

The spelling of 51411641151621 in words is "fifty-one trillion, four hundred eleven billion, six hundred forty-one million, one hundred fifty-one thousand, six hundred twenty-one".