6491957292 has 36 divisors (see below), whose sum is σ = 16415695296. Its totient is φ = 2163264480.

The previous prime is 6491957291. The next prime is 6491957323. The reversal of 6491957292 is 2927591946.

6491957292 is a `hidden beast` number, since 64 + 9 + 1 + 9 + 572 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (6491957291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85542 + ... + 142482.

It is an arithmetic number, because the mean of its divisors is an integer number (455991536).

Almost surely, 2^6491957292 is an apocalyptic number.

It is an amenable number.

6491957292 is an abundant number, since it is smaller than the sum of its proper divisors (9923738004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6491957292 is a wasteful number, since it uses less digits than its factorization.

6491957292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60118 (or 60113 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 6491957292 is about 80572.6832865829. The cubic root of 6491957292 is about 1865.4855300164.

The spelling of 6491957292 in words is "six billion, four hundred ninety-one million, nine hundred fifty-seven thousand, two hundred ninety-two".