40877779237 has 2 divisors, whose sum is σ = 40877779238. Its totient is φ = 40877779236.

The previous prime is 40877779231. The next prime is 40877779279. The reversal of 40877779237 is 73297777804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38679482241 + 2198296996 = 196671^2 + 46886^2 .

It is a cyclic number.

It is not a de Polignac number, because 40877779237 - 2⁷ = 40877779109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40877779231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20438889618 + 20438889619.

It is an arithmetic number, because the mean of its divisors is an integer number (20438889619).

Almost surely, 2^40877779237 is an apocalyptic number.

It is an amenable number.

40877779237 is a deficient number, since it is larger than the sum of its proper divisors (1).

40877779237 is an equidigital number, since it uses as much as digits as its factorization.

40877779237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29042496, while the sum is 61.

The spelling of 40877779237 in words is "forty billion, eight hundred seventy-seven million, seven hundred seventy-nine thousand, two hundred thirty-seven".