40402430377 has 2 divisors, whose sum is σ = 40402430378. Its totient is φ = 40402430376.

The previous prime is 40402430353. The next prime is 40402430447. The reversal of 40402430377 is 77303420404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33244593561 + 7157836816 = 182331^2 + 84604^2 .

It is a cyclic number.

It is not a de Polignac number, because 40402430377 - 2²³ = 40394041769 is a prime.

It is not a weakly prime, because it can be changed into another prime (40402430347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20201215188 + 20201215189.

It is an arithmetic number, because the mean of its divisors is an integer number (20201215189).

Almost surely, 2^40402430377 is an apocalyptic number.

It is an amenable number.

40402430377 is a deficient number, since it is larger than the sum of its proper divisors (1).

40402430377 is an equidigital number, since it uses as much as digits as its factorization.

40402430377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 34.

The spelling of 40402430377 in words is "forty billion, four hundred two million, four hundred thirty thousand, three hundred seventy-seven".