3785564391725 has 12 divisors (see below), whose sum is σ = 4715149627776. Its totient is φ = 3014871008880.

The previous prime is 3785564391701. The next prime is 3785564391731. The reversal of 3785564391725 is 5271934655873.

It is not a de Polignac number, because 3785564391725 - 2²⁴ = 3785547614509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339506927 + ... + 339518076.

It is an arithmetic number, because the mean of its divisors is an integer number (392929135648).

Almost surely, 2^{3785564391725} is an apocalyptic number.

It is an amenable number.

3785564391725 is a deficient number, since it is larger than the sum of its proper divisors (929585236051).

3785564391725 is a wasteful number, since it uses less digits than its factorization.

3785564391725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679025236 (or 679025231 counting only the distinct ones).

The product of its digits is 190512000, while the sum is 65.

The spelling of 3785564391725 in words is "three trillion, seven hundred eighty-five billion, five hundred sixty-four million, three hundred ninety-one thousand, seven hundred twenty-five".