3817465561 has 16 divisors (see below), whose sum is σ = 4700312064. Its totient is φ = 3019195584.

The previous prime is 3817465529. The next prime is 3817465601. The reversal of 3817465561 is 1655647183.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3817465561 - 2⁵ = 3817465529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3817465511) 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, 268155 + ... + 282031.

It is an arithmetic number, because the mean of its divisors is an integer number (293769504).

Almost surely, 2^3817465561 is an apocalyptic number.

It is an amenable number.

3817465561 is a deficient number, since it is larger than the sum of its proper divisors (882846503).

3817465561 is a wasteful number, since it uses less digits than its factorization.

3817465561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16920.

The product of its digits is 604800, while the sum is 46.

The square root of 3817465561 is about 61785.6420295201. The cubic root of 3817465561 is about 1562.8778732034.

The spelling of 3817465561 in words is "three billion, eight hundred seventeen million, four hundred sixty-five thousand, five hundred sixty-one".