406957874556 has 24 divisors (see below), whose sum is σ = 949587724624. Its totient is φ = 135649860480.

The previous prime is 406957874473. The next prime is 406957874567. The reversal of 406957874556 is 655478759604.

It is a super-2 number, since 2×406957874556² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318966 + ... + 956898.

Almost surely, 2^406957874556 is an apocalyptic number.

It is a pronic number, being equal to 637932×637933.

It is an amenable number.

406957874556 is an abundant number, since it is smaller than the sum of its proper divisors (542629850068).

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

406957874556 is a wasteful number, since it uses less digits than its factorization.

406957874556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691101 (or 691099 counting only the distinct ones).

The product of its (nonzero) digits is 254016000, while the sum is 66.

The spelling of 406957874556 in words is "four hundred six billion, nine hundred fifty-seven million, eight hundred seventy-four thousand, five hundred fifty-six".