51577114639 has 8 divisors (see below), whose sum is σ = 54323801840. Its totient is φ = 48833637696.

The previous prime is 51577114579. The next prime is 51577114643. The reversal of 51577114639 is 93641177515.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51577114639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51577114592 and 51577114601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51577114649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769542 + ... + 833875.

It is an arithmetic number, because the mean of its divisors is an integer number (6790475230).

Almost surely, 2^51577114639 is an apocalyptic number.

51577114639 is a deficient number, since it is larger than the sum of its proper divisors (2746687201).

51577114639 is a wasteful number, since it uses less digits than its factorization.

51577114639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605129.

The product of its digits is 793800, while the sum is 49.

The spelling of 51577114639 in words is "fifty-one billion, five hundred seventy-seven million, one hundred fourteen thousand, six hundred thirty-nine".