400434176862719 has 2 divisors, whose sum is σ = 400434176862720. Its totient is φ = 400434176862718.

The previous prime is 400434176862647. The next prime is 400434176862739. The reversal of 400434176862719 is 917268671434004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400434176862719 - 2³² = 400429881895423 is a prime.

It is a super-2 number, since 2×400434176862719² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400434176862739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200217088431359 + 200217088431360.

It is an arithmetic number, because the mean of its divisors is an integer number (200217088431360).

Almost surely, 2^{400434176862719} is an apocalyptic number.

400434176862719 is a deficient number, since it is larger than the sum of its proper divisors (1).

400434176862719 is an equidigital number, since it uses as much as digits as its factorization.

400434176862719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48771072, while the sum is 62.

The spelling of 400434176862719 in words is "four hundred trillion, four hundred thirty-four billion, one hundred seventy-six million, eight hundred sixty-two thousand, seven hundred nineteen".