8737037561 has 12 divisors (see below), whose sum is σ = 10201011840. Its totient is φ = 7461243720.

The previous prime is 8737037549. The next prime is 8737037563. The reversal of 8737037561 is 1657307378.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-8737037561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8737037563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315701 + ... + 342258.

It is an arithmetic number, because the mean of its divisors is an integer number (850084320).

Almost surely, 2^8737037561 is an apocalyptic number.

It is an amenable number.

8737037561 is a deficient number, since it is larger than the sum of its proper divisors (1463974279).

8737037561 is a wasteful number, since it uses less digits than its factorization.

8737037561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658244 (or 658237 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 8737037561 is about 93472.1218385461. The cubic root of 8737037561 is about 2059.6245868346.

The spelling of 8737037561 in words is "eight billion, seven hundred thirty-seven million, thirty-seven thousand, five hundred sixty-one".