406912181964 has 48 divisors (see below), whose sum is σ = 955308791808. Its totient is φ = 134802379648.

The previous prime is 406912181933. The next prime is 406912182059. The reversal of 406912181964 is 469181219604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15182944 + ... + 15209720.

It is an arithmetic number, because the mean of its divisors is an integer number (19902266496).

Almost surely, 2^406912181964 is an apocalyptic number.

It is an amenable number.

406912181964 is an abundant number, since it is smaller than the sum of its proper divisors (548396609844).

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

406912181964 is a wasteful number, since it uses less digits than its factorization.

406912181964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34534 (or 34532 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 406912181964 in words is "four hundred six billion, nine hundred twelve million, one hundred eighty-one thousand, nine hundred sixty-four".