40879164187 has 2 divisors, whose sum is σ = 40879164188. Its totient is φ = 40879164186.

The previous prime is 40879164181. The next prime is 40879164307. The reversal of 40879164187 is 78146197804.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40879164187 is a prime.

It is a super-2 number, since 2×40879164187² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40879164181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20439582093 + 20439582094.

It is an arithmetic number, because the mean of its divisors is an integer number (20439582094).

Almost surely, 2^40879164187 is an apocalyptic number.

40879164187 is a deficient number, since it is larger than the sum of its proper divisors (1).

40879164187 is an equidigital number, since it uses as much as digits as its factorization.

40879164187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 40879164187 in words is "forty billion, eight hundred seventy-nine million, one hundred sixty-four thousand, one hundred eighty-seven".