6642013276 has 12 divisors (see below), whose sum is σ = 11631018672. Its totient is φ = 3318865088.

The previous prime is 6642013267. The next prime is 6642013277. The reversal of 6642013276 is 6723102466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642013277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528400 + ... + 540823.

It is an arithmetic number, because the mean of its divisors is an integer number (969251556).

Almost surely, 2^6642013276 is an apocalyptic number.

It is an amenable number.

6642013276 is a deficient number, since it is larger than the sum of its proper divisors (4989005396).

6642013276 is a wasteful number, since it uses less digits than its factorization.

6642013276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070780 (or 1070778 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 6642013276 is about 81498.5476925816. The cubic root of 6642013276 is about 1879.7492192273.

The spelling of 6642013276 in words is "six billion, six hundred forty-two million, thirteen thousand, two hundred seventy-six".