51849915082 has 32 divisors (see below), whose sum is σ = 92858130432. Its totient is φ = 21230501424.

The previous prime is 51849915049. The next prime is 51849915133. The reversal of 51849915082 is 28051994815.

It is a happy number.

It is a super-2 number, since 2×51849915082² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 184593 + ... + 371179.

It is an arithmetic number, because the mean of its divisors is an integer number (2901816576).

Almost surely, 2^51849915082 is an apocalyptic number.

51849915082 is a deficient number, since it is larger than the sum of its proper divisors (41008215350).

51849915082 is a wasteful number, since it uses less digits than its factorization.

51849915082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187482.

The product of its (nonzero) digits is 1036800, while the sum is 52.

The spelling of 51849915082 in words is "fifty-one billion, eight hundred forty-nine million, nine hundred fifteen thousand, eighty-two".