12992527561 has 8 divisors (see below), whose sum is σ = 14025352320. Its totient is φ = 11964474192.

The previous prime is 12992527549. The next prime is 12992527601. The reversal of 12992527561 is 16572529921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12992527561 - 2¹⁵ = 12992494793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12992527061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187185 + ... + 1198078.

It is an arithmetic number, because the mean of its divisors is an integer number (1753169040).

Almost surely, 2^12992527561 is an apocalyptic number.

It is an amenable number.

12992527561 is a deficient number, since it is larger than the sum of its proper divisors (1032824759).

12992527561 is a wasteful number, since it uses less digits than its factorization.

12992527561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385695.

The product of its digits is 680400, while the sum is 49.

The spelling of 12992527561 in words is "twelve billion, nine hundred ninety-two million, five hundred twenty-seven thousand, five hundred sixty-one".