40861779167 has 16 divisors (see below), whose sum is σ = 45332880000. Its totient is φ = 36518977440.

The previous prime is 40861779163. The next prime is 40861779197. The reversal of 40861779167 is 76197716804.

40861779167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40861779167 - 2² = 40861779163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40861779163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312209 + ... + 423317.

It is an arithmetic number, because the mean of its divisors is an integer number (2833305000).

Almost surely, 2^40861779167 is an apocalyptic number.

40861779167 is a deficient number, since it is larger than the sum of its proper divisors (4471100833).

40861779167 is a wasteful number, since it uses less digits than its factorization.

40861779167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111686.

The product of its (nonzero) digits is 3556224, while the sum is 56.

It can be divided in two parts, 408617 and 79167, that added together give a palindrome (487784).

The spelling of 40861779167 in words is "forty billion, eight hundred sixty-one million, seven hundred seventy-nine thousand, one hundred sixty-seven".