51469996032 has 624 divisors, whose sum is σ = 186524141440. Its totient is φ = 13313507328.

The previous prime is 51469995977. The next prime is 51469996033. The reversal of 51469996032 is 23069996415.

51469996032 is a `hidden beast` number, since 5 + 1 + 469 + 99 + 60 + 32 = 666.

51469996032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (624).

It is a self number, because there is not a number n which added to its sum of digits gives 51469996032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51469996033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224759694 + ... + 224759922.

Almost surely, 2^51469996032 is an apocalyptic number.

51469996032 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51469996032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93262070720).

51469996032 is an abundant number, since it is smaller than the sum of its proper divisors (135054145408).

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

51469996032 is a wasteful number, since it uses less digits than its factorization.

51469996032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 51469996032 in words is "fifty-one billion, four hundred sixty-nine million, nine hundred ninety-six thousand, thirty-two".