51523985827939 has 8 divisors (see below), whose sum is σ = 51530363952768. Its totient is φ = 51517608024960.

The previous prime is 51523985827901. The next prime is 51523985827967. The reversal of 51523985827939 is 93972858932515.

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 51523985827939 - 2¹¹ = 51523985825891 is a prime.

It is a super-2 number, since 2×51523985827939² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51523985821939) 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, 491978409 + ... + 492083125.

It is an arithmetic number, because the mean of its divisors is an integer number (6441295494096).

Almost surely, 2^{51523985827939} is an apocalyptic number.

51523985827939 is a deficient number, since it is larger than the sum of its proper divisors (6378124829).

51523985827939 is a wasteful number, since it uses less digits than its factorization.

51523985827939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160925.

The product of its digits is 1469664000, while the sum is 76.

The spelling of 51523985827939 in words is "fifty-one trillion, five hundred twenty-three billion, nine hundred eighty-five million, eight hundred twenty-seven thousand, nine hundred thirty-nine".