40977981807 has 12 divisors (see below), whose sum is σ = 63557686296. Its totient is φ = 23415989520.

The previous prime is 40977981769. The next prime is 40977981827. The reversal of 40977981807 is 70818977904.

It is not a de Polignac number, because 40977981807 - 2²⁶ = 40910872943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40977981827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139380744 + ... + 139381037.

It is an arithmetic number, because the mean of its divisors is an integer number (5296473858).

Almost surely, 2^40977981807 is an apocalyptic number.

40977981807 is a deficient number, since it is larger than the sum of its proper divisors (22579704489).

40977981807 is a wasteful number, since it uses less digits than its factorization.

40977981807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278761798 (or 278761791 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 60.

The spelling of 40977981807 in words is "forty billion, nine hundred seventy-seven million, nine hundred eighty-one thousand, eight hundred seven".