51888190807 has 8 divisors (see below), whose sum is σ = 52002514800. Its totient is φ = 51773938944.

The previous prime is 51888190787. The next prime is 51888190873. The reversal of 51888190807 is 70809188815.

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 51888190807 - 2³⁵ = 17528452439 is a prime.

It is a super-2 number, since 2×51888190807² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51888190307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1574919 + ... + 1607527.

It is an arithmetic number, because the mean of its divisors is an integer number (6500314350).

Almost surely, 2^51888190807 is an apocalyptic number.

51888190807 is a deficient number, since it is larger than the sum of its proper divisors (114323993).

51888190807 is a wasteful number, since it uses less digits than its factorization.

51888190807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36065.

The product of its (nonzero) digits is 1290240, while the sum is 55.

The spelling of 51888190807 in words is "fifty-one billion, eight hundred eighty-eight million, one hundred ninety thousand, eight hundred seven".