2640926716 has 12 divisors (see below), whose sum is σ = 4624484200. Its totient is φ = 1319645520.

The previous prime is 2640926713. The next prime is 2640926719. The reversal of 2640926716 is 6176290462.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2640926713) and next prime (2640926719).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640926713) 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, 197166 + ... + 210133.

Almost surely, 2^2640926716 is an apocalyptic number.

It is an amenable number.

2640926716 is a deficient number, since it is larger than the sum of its proper divisors (1983557484).

2640926716 is a wasteful number, since it uses less digits than its factorization.

2640926716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408924 (or 408922 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 2640926716 is about 51389.9476162411. The cubic root of 2640926716 is about 1382.2463442495.

The spelling of 2640926716 in words is "two billion, six hundred forty million, nine hundred twenty-six thousand, seven hundred sixteen".