51033721372 has 12 divisors (see below), whose sum is σ = 89564914600. Its totient is φ = 25443745776.

The previous prime is 51033721313. The next prime is 51033721391. The reversal of 51033721372 is 27312733015.

51033721372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 18277158 + ... + 18279949.

Almost surely, 2^51033721372 is an apocalyptic number.

It is an amenable number.

51033721372 is a deficient number, since it is larger than the sum of its proper divisors (38531193228).

51033721372 is a wasteful number, since it uses less digits than its factorization.

51033721372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36557460 (or 36557458 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 34.

The spelling of 51033721372 in words is "fifty-one billion, thirty-three million, seven hundred twenty-one thousand, three hundred seventy-two".