3865345265690 has 32 divisors (see below), whose sum is σ = 7340495184000. Its totient is φ = 1461425796288.

The previous prime is 3865345265659. The next prime is 3865345265711. The reversal of 3865345265690 is 965625435683.

It is a super-2 number, since 2×3865345265690² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23087345 + ... + 23254164.

It is an arithmetic number, because the mean of its divisors is an integer number (229390474500).

Almost surely, 2^{3865345265690} is an apocalyptic number.

3865345265690 is a deficient number, since it is larger than the sum of its proper divisors (3475149918310).

3865345265690 is a wasteful number, since it uses less digits than its factorization.

3865345265690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46341974.

The product of its (nonzero) digits is 139968000, while the sum is 62.

The spelling of 3865345265690 in words is "three trillion, eight hundred sixty-five billion, three hundred forty-five million, two hundred sixty-five thousand, six hundred ninety".