51995012932 has 12 divisors (see below), whose sum is σ = 95780287120. Its totient is φ = 24629216616.

The previous prime is 51995012893. The next prime is 51995012933. The reversal of 51995012932 is 23921059915.

It is not an unprimeable number, because it can be changed into a prime (51995012933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342072378 + ... + 342072529.

Almost surely, 2^51995012932 is an apocalyptic number.

It is an amenable number.

51995012932 is a deficient number, since it is larger than the sum of its proper divisors (43785274188).

51995012932 is a wasteful number, since it uses less digits than its factorization.

51995012932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684144930 (or 684144928 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 46.

The spelling of 51995012932 in words is "fifty-one billion, nine hundred ninety-five million, twelve thousand, nine hundred thirty-two".