2764264640 has 28 divisors (see below), whose sum is σ = 6582405936. Its totient is φ = 1105705728.

The previous prime is 2764264631. The next prime is 2764264669. The reversal of 2764264640 is 464624672.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4318844 + ... + 4319483.

Almost surely, 2^2764264640 is an apocalyptic number.

2764264640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2764264640 is an abundant number, since it is smaller than the sum of its proper divisors (3818141296).

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

2764264640 is an equidigital number, since it uses as much as digits as its factorization.

2764264640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8638344 (or 8638334 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 41.

The square root of 2764264640 is about 52576.2744971532. The cubic root of 2764264640 is about 1403.4379180930.

The spelling of 2764264640 in words is "two billion, seven hundred sixty-four million, two hundred sixty-four thousand, six hundred forty".