40712979798 has 12 divisors (see below), whose sum is σ = 88211456268. Its totient is φ = 13570993260.

The previous prime is 40712979767. The next prime is 40712979817. The reversal of 40712979798 is 89797921704.

It is a super-2 number, since 2×40712979798² (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 5 ways as a sum of consecutive naturals, for example, 1130916088 + ... + 1130916123.

It is an arithmetic number, because the mean of its divisors is an integer number (7350954689).

Almost surely, 2^40712979798 is an apocalyptic number.

40712979798 is an abundant number, since it is smaller than the sum of its proper divisors (47498476470).

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

40712979798 is a wasteful number, since it uses less digits than its factorization.

40712979798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261832219 (or 2261832216 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 63.

The spelling of 40712979798 in words is "forty billion, seven hundred twelve million, nine hundred seventy-nine thousand, seven hundred ninety-eight".