402292137872 has 20 divisors (see below), whose sum is σ = 779471622156. Its totient is φ = 201138170880.

The previous prime is 402292137839. The next prime is 402292137881. The reversal of 402292137872 is 278731292204.

It can be written as a sum of positive squares in 2 ways, for example, as 36586508176 + 365705629696 = 191276^2 + 604736^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61973 + ... + 899124.

Almost surely, 2^402292137872 is an apocalyptic number.

It is an amenable number.

402292137872 is a deficient number, since it is larger than the sum of its proper divisors (377179484284).

402292137872 is a wasteful number, since it uses less digits than its factorization.

402292137872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987266 (or 987260 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 402292137872 in words is "four hundred two billion, two hundred ninety-two million, one hundred thirty-seven thousand, eight hundred seventy-two".