6490857295971 has 64 divisors (see below), whose sum is σ = 10249438464000. Its totient is φ = 4098577338144.

The previous prime is 6490857295919. The next prime is 6490857295999. The reversal of 6490857295971 is 1795927580946.

6490857295971 is a `hidden beast` number, since 6 + 4 + 9 + 0 + 8 + 5 + 7 + 29 + 597 + 1 = 666.

It is not a de Polignac number, because 6490857295971 - 2³⁰ = 6489783554147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6490857295971.

It is not an unprimeable number, because it can be changed into a prime (6490857295171) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 220590166 + ... + 220619588.

It is an arithmetic number, because the mean of its divisors is an integer number (160147476000).

Almost surely, 2^{6490857295971} is an apocalyptic number.

6490857295971 is a deficient number, since it is larger than the sum of its proper divisors (3758581168029).

6490857295971 is an equidigital number, since it uses as much as digits as its factorization.

6490857295971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34772 (or 34754 counting only the distinct ones).

The product of its (nonzero) digits is 342921600, while the sum is 72.

The spelling of 6490857295971 in words is "six trillion, four hundred ninety billion, eight hundred fifty-seven million, two hundred ninety-five thousand, nine hundred seventy-one".