40171192792 has 8 divisors (see below), whose sum is σ = 75320986500. Its totient is φ = 20085596392.

The previous prime is 40171192759. The next prime is 40171192801. The reversal of 40171192792 is 29729117104.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40171192792² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510699542 + ... + 2510699557.

Almost surely, 2^40171192792 is an apocalyptic number.

It is an amenable number.

40171192792 is a deficient number, since it is larger than the sum of its proper divisors (35149793708).

40171192792 is a wasteful number, since it uses less digits than its factorization.

40171192792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021399105 (or 5021399101 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 40171192792 in words is "forty billion, one hundred seventy-one million, one hundred ninety-two thousand, seven hundred ninety-two".