40776138838913 has 24 divisors (see below), whose sum is σ = 43446808788600. Its totient is φ = 38261530275840.

The previous prime is 40776138838907. The next prime is 40776138838973. The reversal of 40776138838913 is 31983883167704.

It can be written as a sum of positive squares in 12 ways, for example, as 6722938536769 + 34053200302144 = 2592863^2 + 5835512^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40776138838913 is a prime.

It is a super-2 number, since 2×40776138838913² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40776138838973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 718202795 + ... + 718259567.

It is an arithmetic number, because the mean of its divisors is an integer number (1810283699525).

Almost surely, 2^{40776138838913} is an apocalyptic number.

It is an amenable number.

40776138838913 is a deficient number, since it is larger than the sum of its proper divisors (2670669949687).

40776138838913 is a wasteful number, since it uses less digits than its factorization.

40776138838913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64277 (or 64260 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 68.

The spelling of 40776138838913 in words is "forty trillion, seven hundred seventy-six billion, one hundred thirty-eight million, eight hundred thirty-eight thousand, nine hundred thirteen".