405980805874 has 16 divisors (see below), whose sum is σ = 696103655616. Its totient is φ = 173957634000.

The previous prime is 405980805869. The next prime is 405980805907. The reversal of 405980805874 is 478508089504.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2771032 + ... + 2913859.

It is an arithmetic number, because the mean of its divisors is an integer number (43506478476).

Almost surely, 2^405980805874 is an apocalyptic number.

405980805874 is a deficient number, since it is larger than the sum of its proper divisors (290122849742).

405980805874 is a wasteful number, since it uses less digits than its factorization.

405980805874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690001.

The product of its (nonzero) digits is 12902400, while the sum is 58.

The spelling of 405980805874 in words is "four hundred five billion, nine hundred eighty million, eight hundred five thousand, eight hundred seventy-four".