40183668478 has 16 divisors (see below), whose sum is σ = 62010096624. Its totient is φ = 19515487680.

The previous prime is 40183668467. The next prime is 40183668523. The reversal of 40183668478 is 87486638104.

It is a super-2 number, since 2×40183668478² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 419103 + ... + 505978.

It is an arithmetic number, because the mean of its divisors is an integer number (3875631039).

Almost surely, 2^40183668478 is an apocalyptic number.

40183668478 is a deficient number, since it is larger than the sum of its proper divisors (21826428146).

40183668478 is a wasteful number, since it uses less digits than its factorization.

40183668478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925707.

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 40183668478 in words is "forty billion, one hundred eighty-three million, six hundred sixty-eight thousand, four hundred seventy-eight".