2683640520 has 96 divisors (see below), whose sum is σ = 9514739520. Its totient is φ = 650578560.

The previous prime is 2683640513. The next prime is 2683640537. The reversal of 2683640520 is 250463862.

2683640520 is a `hidden beast` number, since 2 + 6 + 8 + 3 + 640 + 5 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334884 + ... + 342803.

It is an arithmetic number, because the mean of its divisors is an integer number (99111870).

Almost surely, 2^2683640520 is an apocalyptic number.

2683640520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2683640520 is an abundant number, since it is smaller than the sum of its proper divisors (6831099000).

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

2683640520 is a wasteful number, since it uses less digits than its factorization.

2683640520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677715 (or 677708 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 2683640520 is about 51803.8658789091. The cubic root of 2683640520 is about 1389.6585811563.

The spelling of 2683640520 in words is "two billion, six hundred eighty-three million, six hundred forty thousand, five hundred twenty".