406311994836 has 36 divisors (see below), whose sum is σ = 1120436108064. Its totient is φ = 123124846800.

The previous prime is 406311994799. The next prime is 406311994849. The reversal of 406311994836 is 638499113604.

406311994836 is a `hidden beast` number, since 4 + 0 + 63 + 11 + 99 + 483 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 513019800 + ... + 513020591.

It is an arithmetic number, because the mean of its divisors is an integer number (31123225224).

Almost surely, 2^406311994836 is an apocalyptic number.

It is an amenable number.

406311994836 is an abundant number, since it is smaller than the sum of its proper divisors (714124113228).

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

406311994836 is a wasteful number, since it uses less digits than its factorization.

406311994836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026040412 (or 1026040407 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 406311994836 in words is "four hundred six billion, three hundred eleven million, nine hundred ninety-four thousand, eight hundred thirty-six".