400640136162 has 16 divisors (see below), whose sum is σ = 915748882752. Its totient is φ = 114468610320.

The previous prime is 400640136137. The next prime is 400640136163. The reversal of 400640136162 is 261631046004.

It is not an unprimeable number, because it can be changed into a prime (400640136163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4769525389 + ... + 4769525472.

It is an arithmetic number, because the mean of its divisors is an integer number (57234305172).

Almost surely, 2^400640136162 is an apocalyptic number.

400640136162 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

400640136162 is an abundant number, since it is smaller than the sum of its proper divisors (515108746590).

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

400640136162 is a wasteful number, since it uses less digits than its factorization.

400640136162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9539050873.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 400640136162 in words is "four hundred billion, six hundred forty million, one hundred thirty-six thousand, one hundred sixty-two".