400767194647 has 2 divisors, whose sum is σ = 400767194648. Its totient is φ = 400767194646.

The previous prime is 400767194623. The next prime is 400767194669. The reversal of 400767194647 is 746491767004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400767194647 is a prime.

It is a super-2 number, since 2×400767194647² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400767194447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200383597323 + 200383597324.

It is an arithmetic number, because the mean of its divisors is an integer number (200383597324).

Almost surely, 2^400767194647 is an apocalyptic number.

400767194647 is a deficient number, since it is larger than the sum of its proper divisors (1).

400767194647 is an equidigital number, since it uses as much as digits as its factorization.

400767194647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 400767194647 in words is "four hundred billion, seven hundred sixty-seven million, one hundred ninety-four thousand, six hundred forty-seven".