3772293561 has 27 divisors (see below), whose sum is σ = 5558806981. Its totient is φ = 2465112984.

The previous prime is 3772293521. The next prime is 3772293571. The reversal of 3772293561 is 1653922773.

The square root of 3772293561 is 61419.

It is a perfect power (a square), and thus also a powerful number.

3772293561 is a `hidden beast` number, since 3 + 77 + 229 + 356 + 1 = 666.

It is not a de Polignac number, because 3772293561 - 2⁷ = 3772293433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3772293521) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10870990 + ... + 10871336.

Almost surely, 2^3772293561 is an apocalyptic number.

3772293561 is the 61419-th square number.

3772293561 is the 30710-th centered octagonal number.

It is an amenable number.

3772293561 is a deficient number, since it is larger than the sum of its proper divisors (1786513420).

3772293561 is an frugal number, since it uses more digits than its factorization.

3772293561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 409 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The cubic root of 3772293561 is about 1556.6888955360.

The spelling of 3772293561 in words is "three billion, seven hundred seventy-two million, two hundred ninety-three thousand, five hundred sixty-one".