406578937964 has 24 divisors (see below), whose sum is σ = 715133260800. Its totient is φ = 202257239760.

The previous prime is 406578937957. The next prime is 406578937979. The reversal of 406578937964 is 469739875604.

It is a junction number, because it is equal to n+sod(n) for n = 406578937894 and 406578937903.

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, 518567 + ... + 1040225.

It is an arithmetic number, because the mean of its divisors is an integer number (29797219200).

Almost surely, 2^406578937964 is an apocalyptic number.

It is an amenable number.

406578937964 is a deficient number, since it is larger than the sum of its proper divisors (308554322836).

406578937964 is a wasteful number, since it uses less digits than its factorization.

406578937964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522653 (or 522651 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 68.

The spelling of 406578937964 in words is "four hundred six billion, five hundred seventy-eight million, nine hundred thirty-seven thousand, nine hundred sixty-four".