40879415772 has 192 divisors, whose sum is σ = 122102951040. Its totient is φ = 11715674112.

The previous prime is 40879415771. The next prime is 40879415803. The reversal of 40879415772 is 27751497804.

It is a super-2 number, since 2×40879415772² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40879415771) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2306368 + ... + 2324024.

It is an arithmetic number, because the mean of its divisors is an integer number (635952870).

Almost surely, 2^40879415772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40879415772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61051475520).

40879415772 is an abundant number, since it is smaller than the sum of its proper divisors (81223535268).

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

40879415772 is a wasteful number, since it uses less digits than its factorization.

40879415772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17797 (or 17789 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 40879415772 in words is "forty billion, eight hundred seventy-nine million, four hundred fifteen thousand, seven hundred seventy-two".