53901788778 has 48 divisors (see below), whose sum is σ = 117951384096. Its totient is φ = 17789038560.

The previous prime is 53901788729. The next prime is 53901788779. The reversal of 53901788778 is 87788710935.

53901788778 is a `hidden beast` number, since 5 + 390 + 178 + 8 + 7 + 78 = 666.

It is not an unprimeable number, because it can be changed into a prime (53901788779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 703125 + ... + 776007.

It is an arithmetic number, because the mean of its divisors is an integer number (2457320502).

Almost surely, 2^53901788778 is an apocalyptic number.

53901788778 is an abundant number, since it is smaller than the sum of its proper divisors (64049595318).

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

53901788778 is a wasteful number, since it uses less digits than its factorization.

53901788778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73299 (or 73296 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 63.

The spelling of 53901788778 in words is "fifty-three billion, nine hundred one million, seven hundred eighty-eight thousand, seven hundred seventy-eight".