40177839479694 has 32 divisors (see below), whose sum is σ = 91841741415936. Its totient is φ = 11478547740000.

The previous prime is 40177839479693. The next prime is 40177839479707. The reversal of 40177839479694 is 49697493877104.

It is a super-2 number, since 2×40177839479694² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40177839479693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34205937 + ... + 35361020.

It is an arithmetic number, because the mean of its divisors is an integer number (2870054419248).

Almost surely, 2^{40177839479694} is an apocalyptic number.

40177839479694 is an abundant number, since it is smaller than the sum of its proper divisors (51663901936242).

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

40177839479694 is a wasteful number, since it uses less digits than its factorization.

40177839479694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69580720.

The product of its (nonzero) digits is 2304433152, while the sum is 78.

The spelling of 40177839479694 in words is "forty trillion, one hundred seventy-seven billion, eight hundred thirty-nine million, four hundred seventy-nine thousand, six hundred ninety-four".