53623687904 has 48 divisors (see below), whose sum is σ = 109453518720. Its totient is φ = 25833530880.

The previous prime is 53623687841. The next prime is 53623687933. The reversal of 53623687904 is 40978632635.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109142 + ... + 345194.

It is an arithmetic number, because the mean of its divisors is an integer number (2280281640).

Almost surely, 2^53623687904 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 53623687904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54726759360).

53623687904 is an abundant number, since it is smaller than the sum of its proper divisors (55829830816).

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

53623687904 is a wasteful number, since it uses less digits than its factorization.

53623687904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236323 (or 236315 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 53623687904 in words is "fifty-three billion, six hundred twenty-three million, six hundred eighty-seven thousand, nine hundred four".