3642568525406 has 12 divisors (see below), whose sum is σ = 5600367854016. Its totient is φ = 1776862693680.

The previous prime is 3642568525399. The next prime is 3642568525439. The reversal of 3642568525406 is 6045258652463.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 541723070 + ... + 541729793.

It is an arithmetic number, because the mean of its divisors is an integer number (466697321168).

Almost surely, 2^{3642568525406} is an apocalyptic number.

3642568525406 is a deficient number, since it is larger than the sum of its proper divisors (1957799328610).

3642568525406 is a wasteful number, since it uses less digits than its factorization.

3642568525406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083452947 (or 1083452906 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 56.

The spelling of 3642568525406 in words is "three trillion, six hundred forty-two billion, five hundred sixty-eight million, five hundred twenty-five thousand, four hundred six".