40720722136 has 16 divisors (see below), whose sum is σ = 77791946400. Its totient is φ = 19976203104.

The previous prime is 40720722131. The next prime is 40720722139. The reversal of 40720722136 is 63122702704.

40720722136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40720722136² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40720722131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48019296 + ... + 48020143.

It is an arithmetic number, because the mean of its divisors is an integer number (4861996650).

Almost surely, 2^40720722136 is an apocalyptic number.

It is an amenable number.

40720722136 is a deficient number, since it is larger than the sum of its proper divisors (37071224264).

40720722136 is a wasteful number, since it uses less digits than its factorization.

40720722136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96039498 (or 96039494 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 40720722136 in words is "forty billion, seven hundred twenty million, seven hundred twenty-two thousand, one hundred thirty-six".