400765246667 has 2 divisors, whose sum is σ = 400765246668. Its totient is φ = 400765246666.

The previous prime is 400765246663. The next prime is 400765246681. The reversal of 400765246667 is 766642567004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400765246667 - 2² = 400765246663 is a prime.

It is a super-2 number, since 2×400765246667² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (400765246663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200382623333 + 200382623334.

It is an arithmetic number, because the mean of its divisors is an integer number (200382623334).

Almost surely, 2^400765246667 is an apocalyptic number.

400765246667 is a deficient number, since it is larger than the sum of its proper divisors (1).

400765246667 is an equidigital number, since it uses as much as digits as its factorization.

400765246667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 400765246667 in words is "four hundred billion, seven hundred sixty-five million, two hundred forty-six thousand, six hundred sixty-seven".