6402527997 has 16 divisors (see below), whose sum is σ = 8650599552. Its totient is φ = 4211778560.

The previous prime is 6402527987. The next prime is 6402528007. The reversal of 6402527997 is 7997252046.

It is an interprime number because it is at equal distance from previous prime (6402527987) and next prime (6402528007).

It is a cyclic number.

It is not a de Polignac number, because 6402527997 - 2¹⁴ = 6402511613 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402527977) 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 in 15 ways as a sum of consecutive naturals, for example, 21997 + ... + 115277.

It is an arithmetic number, because the mean of its divisors is an integer number (540662472).

Almost surely, 2^6402527997 is an apocalyptic number.

It is an amenable number.

6402527997 is a deficient number, since it is larger than the sum of its proper divisors (2248071555).

6402527997 is a wasteful number, since it uses less digits than its factorization.

6402527997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93588.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 6402527997 is about 80015.7984213118. The cubic root of 6402527997 is about 1856.8799579872.

The spelling of 6402527997 in words is "six billion, four hundred two million, five hundred twenty-seven thousand, nine hundred ninety-seven".