402087322512 has 40 divisors (see below), whose sum is σ = 1154139538080. Its totient is φ = 134029107360.

The previous prime is 402087322501. The next prime is 402087322517. The reversal of 402087322512 is 215223780204.

402087322512 is a `hidden beast` number, since 40 + 2 + 0 + 87 + 3 + 22 + 512 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (402087322517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465378414 + ... + 465379277.

It is an arithmetic number, because the mean of its divisors is an integer number (28853488452).

Almost surely, 2^402087322512 is an apocalyptic number.

It is an amenable number.

402087322512 is an abundant number, since it is smaller than the sum of its proper divisors (752052215568).

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

402087322512 is a wasteful number, since it uses less digits than its factorization.

402087322512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930757708 (or 930757696 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 402087322512 in words is "four hundred two billion, eighty-seven million, three hundred twenty-two thousand, five hundred twelve".