51641024516 has 12 divisors (see below), whose sum is σ = 90389387088. Its totient is φ = 25815485352.

The previous prime is 51641024489. The next prime is 51641024527. The reversal of 51641024516 is 61542014615.

It is a super-2 number, since 2×51641024516² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233566 + ... + 1274741.

It is an arithmetic number, because the mean of its divisors is an integer number (7532448924).

Almost surely, 2^51641024516 is an apocalyptic number.

It is an amenable number.

51641024516 is a deficient number, since it is larger than the sum of its proper divisors (38748362572).

51641024516 is a wasteful number, since it uses less digits than its factorization.

51641024516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513458 (or 2513456 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

Subtracting 51641024516 from its reverse (61542014615), we obtain a palindrome (9900990099).

The spelling of 51641024516 in words is "fifty-one billion, six hundred forty-one million, twenty-four thousand, five hundred sixteen".