3640636662 has 16 divisors (see below), whose sum is σ = 7841371440. Its totient is φ = 1120195872.

The previous prime is 3640636613. The next prime is 3640636679. The reversal of 3640636662 is 2666360463.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23337337 + ... + 23337492.

It is an arithmetic number, because the mean of its divisors is an integer number (490085715).

Almost surely, 2^3640636662 is an apocalyptic number.

3640636662 is an abundant number, since it is smaller than the sum of its proper divisors (4200734778).

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

3640636662 is a wasteful number, since it uses less digits than its factorization.

3640636662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46674847.

The product of its (nonzero) digits is 559872, while the sum is 42.

The square root of 3640636662 is about 60337.6885702460. The cubic root of 3640636662 is about 1538.3640160242.

The spelling of 3640636662 in words is "three billion, six hundred forty million, six hundred thirty-six thousand, six hundred sixty-two".