51832691904 has 336 divisors, whose sum is σ = 169009210368. Its totient is φ = 13725351936.

The previous prime is 51832691899. The next prime is 51832691941. The reversal of 51832691904 is 40919623815.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 22802512 + ... + 22804784.

Almost surely, 2^51832691904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51832691904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84504605184).

51832691904 is an abundant number, since it is smaller than the sum of its proper divisors (117176518464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51832691904 is a wasteful number, since it uses less digits than its factorization.

51832691904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380 (or 2351 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 51832691904 in words is "fifty-one billion, eight hundred thirty-two million, six hundred ninety-one thousand, nine hundred four".