3752693561 has 4 divisors (see below), whose sum is σ = 3873748224. Its totient is φ = 3631638900.

The previous prime is 3752693533. The next prime is 3752693579. The reversal of 3752693561 is 1653962573.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1653962573 = 53 ⋅31206841.

It is a cyclic number.

It is not a de Polignac number, because 3752693561 - 2²² = 3748499257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3752692561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60527285 + ... + 60527346.

It is an arithmetic number, because the mean of its divisors is an integer number (968437056).

Almost surely, 2^3752693561 is an apocalyptic number.

3752693561 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3752693561 is a deficient number, since it is larger than the sum of its proper divisors (121054663).

3752693561 is a wasteful number, since it uses less digits than its factorization.

3752693561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121054662.

The product of its digits is 1020600, while the sum is 47.

The square root of 3752693561 is about 61259.2324551981. The cubic root of 3752693561 is about 1553.9881426303.

The spelling of 3752693561 in words is "three billion, seven hundred fifty-two million, six hundred ninety-three thousand, five hundred sixty-one".