402765253788 has 48 divisors (see below), whose sum is σ = 991543472640. Its totient is φ = 126893894400.

The previous prime is 402765253757. The next prime is 402765253811. The reversal of 402765253788 is 887352567204.

402765253788 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1951053 + ... + 2147588.

It is an arithmetic number, because the mean of its divisors is an integer number (20657155680).

Almost surely, 2^402765253788 is an apocalyptic number.

It is an amenable number.

402765253788 is an abundant number, since it is smaller than the sum of its proper divisors (588778218852).

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

402765253788 is a wasteful number, since it uses less digits than its factorization.

402765253788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099098 (or 4099096 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 57.

The spelling of 402765253788 in words is "four hundred two billion, seven hundred sixty-five million, two hundred fifty-three thousand, seven hundred eighty-eight".