402108185860 has 24 divisors (see below), whose sum is σ = 848848283136. Its totient is φ = 160001161440.

The previous prime is 402108185779. The next prime is 402108185863. The reversal of 402108185860 is 68581801204.

It is not an unprimeable number, because it can be changed into a prime (402108185863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52628142 + ... + 52635781.

It is an arithmetic number, because the mean of its divisors is an integer number (35368678464).

Almost surely, 2^402108185860 is an apocalyptic number.

It is an amenable number.

402108185860 is an abundant number, since it is smaller than the sum of its proper divisors (446740097276).

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

402108185860 is a wasteful number, since it uses less digits than its factorization.

402108185860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105264123 (or 105264121 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 43.

The spelling of 402108185860 in words is "four hundred two billion, one hundred eight million, one hundred eighty-five thousand, eight hundred sixty".