40517220772 has 12 divisors (see below), whose sum is σ = 81034441600. Its totient is φ = 17364523176.

The previous prime is 40517220749. The next prime is 40517220781. The reversal of 40517220772 is 27702271504.

40517220772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

40517220772 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723521772 + ... + 723521827.

Almost surely, 2^40517220772 is an apocalyptic number.

It is an amenable number.

40517220772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40517220772 is a wasteful number, since it uses less digits than its factorization.

40517220772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447043610 (or 1447043608 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 37.

The spelling of 40517220772 in words is "forty billion, five hundred seventeen million, two hundred twenty thousand, seven hundred seventy-two".