3561671607723 has 32 divisors (see below), whose sum is σ = 5377665489920. Its totient is φ = 2329158149280.

The previous prime is 3561671607677. The next prime is 3561671607737. The reversal of 3561671607723 is 3277061761653.

3561671607723 is a `hidden beast` number, since 3 + 5 + 6 + 1 + 6 + 7 + 1 + 607 + 7 + 23 = 666.

It is not a de Polignac number, because 3561671607723 - 2¹⁰ = 3561671606699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3561671607723.

It is not an unprimeable number, because it can be changed into a prime (3561671607763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2341765 + ... + 3550662.

It is an arithmetic number, because the mean of its divisors is an integer number (168052046560).

Almost surely, 2^{3561671607723} is an apocalyptic number.

3561671607723 is a deficient number, since it is larger than the sum of its proper divisors (1815993882197).

3561671607723 is a wasteful number, since it uses less digits than its factorization.

3561671607723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892864 (or 5892858 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 54.

The spelling of 3561671607723 in words is "three trillion, five hundred sixty-one billion, six hundred seventy-one million, six hundred seven thousand, seven hundred twenty-three".