3197861745 has 16 divisors (see below), whose sum is σ = 5510162112. Its totient is φ = 1574331840.

The previous prime is 3197861731. The next prime is 3197861749. The reversal of 3197861745 is 5471687913.

It is a happy number.

It is not a de Polignac number, because 3197861745 - 2⁵ = 3197861713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3197861749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8199451 + ... + 8199840.

It is an arithmetic number, because the mean of its divisors is an integer number (344385132).

Almost surely, 2^3197861745 is an apocalyptic number.

It is an amenable number.

3197861745 is a deficient number, since it is larger than the sum of its proper divisors (2312300367).

3197861745 is a wasteful number, since it uses less digits than its factorization.

3197861745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16399312.

The product of its digits is 1270080, while the sum is 51.

The square root of 3197861745 is about 56549.6396540243. The cubic root of 3197861745 is about 1473.2843013730.

The spelling of 3197861745 in words is "three billion, one hundred ninety-seven million, eight hundred sixty-one thousand, seven hundred forty-five".