408402306747 has 16 divisors (see below), whose sum is σ = 612510092960. Its totient is φ = 272268203040.

The previous prime is 408402306733. The next prime is 408402306799. The reversal of 408402306747 is 747603204804.

408402306747 is a `hidden beast` number, since 408 + 4 + 0 + 230 + 6 + 7 + 4 + 7 = 666.

It is not a de Polignac number, because 408402306747 - 2⁸ = 408402306491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408402304747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93368254 + ... + 93372627.

It is an arithmetic number, because the mean of its divisors is an integer number (38281880810).

Almost surely, 2^408402306747 is an apocalyptic number.

408402306747 is a deficient number, since it is larger than the sum of its proper divisors (204107786213).

408402306747 is an frugal number, since it uses more digits than its factorization.

408402306747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186740902 (or 186740884 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 408402306747 in words is "four hundred eight billion, four hundred two million, three hundred six thousand, seven hundred forty-seven".