3193622645 has 18 divisors (see below), whose sum is σ = 3882269142. Its totient is φ = 2522043216.

The previous prime is 3193622639. The next prime is 3193622659. The reversal of 3193622645 is 5462263913.

It can be written as a sum of positive squares in only one way, i.e., 2554898116 + 638724529 = 50546^2 + 25273^2 .

It is not a de Polignac number, because 3193622645 - 2⁴ = 3193622629 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 17 ways as a sum of consecutive naturals, for example, 16048256 + ... + 16048454.

It is an arithmetic number, because the mean of its divisors is an integer number (215681619).

Almost surely, 2^3193622645 is an apocalyptic number.

It is an amenable number.

3193622645 is a deficient number, since it is larger than the sum of its proper divisors (688646497).

3193622645 is an frugal number, since it uses more digits than its factorization.

3193622645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 331 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 3193622645 is about 56512.1459953522. The cubic root of 3193622645 is about 1472.6330160604.

Multiplying 3193622645 by its product of digits (233280), we get a square (745008290625600 = 27294840²).

The spelling of 3193622645 in words is "three billion, one hundred ninety-three million, six hundred twenty-two thousand, six hundred forty-five".