408699630612 has 864 divisors, whose sum is σ = 1405419724800. Its totient is φ = 102817693440.

The previous prime is 408699630607. The next prime is 408699630649. The reversal of 408699630612 is 216036996804.

408699630612 is a `hidden beast` number, since 408 + 69 + 96 + 30 + 61 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2053766889 + ... + 2053767087.

It is an arithmetic number, because the mean of its divisors is an integer number (1626643200).

Almost surely, 2^408699630612 is an apocalyptic number.

408699630612 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 408699630612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702709862400).

408699630612 is an abundant number, since it is smaller than the sum of its proper divisors (996720094188).

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

408699630612 is a wasteful number, since it uses less digits than its factorization.

408699630612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 362 counting only the distinct ones).

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

The spelling of 408699630612 in words is "four hundred eight billion, six hundred ninety-nine million, six hundred thirty thousand, six hundred twelve".