40667400684 has 18 divisors (see below), whose sum is σ = 102798151820. Its totient is φ = 13555800216.

The previous prime is 40667400679. The next prime is 40667400701. The reversal of 40667400684 is 48600476604.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 564824974 + ... + 564825045.

Almost surely, 2^40667400684 is an apocalyptic number.

It is an amenable number.

40667400684 is an abundant number, since it is smaller than the sum of its proper divisors (62130751136).

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

40667400684 is a wasteful number, since it uses less digits than its factorization.

40667400684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129650029 (or 1129650024 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 40667400684 in words is "forty billion, six hundred sixty-seven million, four hundred thousand, six hundred eighty-four".