40780137771 has 24 divisors (see below), whose sum is σ = 62506924480. Its totient is φ = 26554501512.

The previous prime is 40780137737. The next prime is 40780137809. The reversal of 40780137771 is 17773108704.

It is not a de Polignac number, because 40780137771 - 2⁶ = 40780137707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40780137271) 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, 1940941 + ... + 1961838.

Almost surely, 2^40780137771 is an apocalyptic number.

40780137771 is a deficient number, since it is larger than the sum of its proper divisors (21726786709).

40780137771 is an equidigital number, since it uses as much as digits as its factorization.

40780137771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902837 (or 3902825 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 45.

The spelling of 40780137771 in words is "forty billion, seven hundred eighty million, one hundred thirty-seven thousand, seven hundred seventy-one".