408794425567 has 12 divisors (see below), whose sum is σ = 449353895760. Its totient is φ = 371616512960.

The previous prime is 408794425561. The next prime is 408794425583. The reversal of 408794425567 is 765524497804.

It is not a de Polignac number, because 408794425567 - 2²³ = 408786036959 is a prime.

It is a super-2 number, since 2×408794425567² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408794425561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4000503 + ... + 4101415.

It is an arithmetic number, because the mean of its divisors is an integer number (37446157980).

Almost surely, 2^408794425567 is an apocalyptic number.

408794425567 is a deficient number, since it is larger than the sum of its proper divisors (40559470193).

408794425567 is a wasteful number, since it uses less digits than its factorization.

408794425567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134414 (or 134403 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 61.

The spelling of 408794425567 in words is "four hundred eight billion, seven hundred ninety-four million, four hundred twenty-five thousand, five hundred sixty-seven".