40657477019 has 2 divisors, whose sum is σ = 40657477020. Its totient is φ = 40657477018.

The previous prime is 40657476931. The next prime is 40657477087. The reversal of 40657477019 is 91077475604.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40657477019 is a prime.

It is a super-2 number, since 2×40657477019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40657477919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20328738509 + 20328738510.

It is an arithmetic number, because the mean of its divisors is an integer number (20328738510).

Almost surely, 2^40657477019 is an apocalyptic number.

40657477019 is a deficient number, since it is larger than the sum of its proper divisors (1).

40657477019 is an equidigital number, since it uses as much as digits as its factorization.

40657477019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 50.

The spelling of 40657477019 in words is "forty billion, six hundred fifty-seven million, four hundred seventy-seven thousand, nineteen".