406199515872 has 96 divisors (see below), whose sum is σ = 1128209886720. Its totient is φ = 127608791040.

The previous prime is 406199515861. The next prime is 406199515903. The reversal of 406199515872 is 278515991604.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224904 + ... + 928967.

It is an arithmetic number, because the mean of its divisors is an integer number (11752186320).

Almost surely, 2^406199515872 is an apocalyptic number.

It is an amenable number.

406199515872 is an abundant number, since it is smaller than the sum of its proper divisors (722010370848).

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

406199515872 is a wasteful number, since it uses less digits than its factorization.

406199515872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154096 (or 1154088 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 57.

The spelling of 406199515872 in words is "four hundred six billion, one hundred ninety-nine million, five hundred fifteen thousand, eight hundred seventy-two".