40391542722 has 32 divisors (see below), whose sum is σ = 85346784000. Its totient is φ = 12722987648.

The previous prime is 40391542679. The next prime is 40391542757. The reversal of 40391542722 is 22724519304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2461347 + ... + 2477702.

It is an arithmetic number, because the mean of its divisors is an integer number (2667087000).

Almost surely, 2^40391542722 is an apocalyptic number.

40391542722 is an abundant number, since it is smaller than the sum of its proper divisors (44955241278).

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

40391542722 is a wasteful number, since it uses less digits than its factorization.

40391542722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939130.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 40391542722 in words is "forty billion, three hundred ninety-one million, five hundred forty-two thousand, seven hundred twenty-two".