6401602667 has 2 divisors, whose sum is σ = 6401602668. Its totient is φ = 6401602666.

The previous prime is 6401602661. The next prime is 6401602679. The reversal of 6401602667 is 7662061046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6401602667 - 2¹⁰ = 6401601643 is a prime.

It is a super-2 number, since 2×6401602667² = 81961033412283025778, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6401602667.

It is not a weakly prime, because it can be changed into another prime (6401602661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200801333 + 3200801334.

It is an arithmetic number, because the mean of its divisors is an integer number (3200801334).

Almost surely, 2^6401602667 is an apocalyptic number.

6401602667 is a deficient number, since it is larger than the sum of its proper divisors (1).

6401602667 is an equidigital number, since it uses as much as digits as its factorization.

6401602667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 6401602667 is about 80010.0160417432. The cubic root of 6401602667 is about 1856.7904980367.

The spelling of 6401602667 in words is "six billion, four hundred one million, six hundred two thousand, six hundred sixty-seven".