40400157139 has 2 divisors, whose sum is σ = 40400157140. Its totient is φ = 40400157138.

The previous prime is 40400157131. The next prime is 40400157151. The reversal of 40400157139 is 93175100404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40400157139 - 2³ = 40400157131 is a prime.

It is not a weakly prime, because it can be changed into another prime (40400157131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200078569 + 20200078570.

It is an arithmetic number, because the mean of its divisors is an integer number (20200078570).

Almost surely, 2^40400157139 is an apocalyptic number.

40400157139 is a deficient number, since it is larger than the sum of its proper divisors (1).

40400157139 is an equidigital number, since it uses as much as digits as its factorization.

40400157139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 40400157139 in words is "forty billion, four hundred million, one hundred fifty-seven thousand, one hundred thirty-nine".