12577662137 has 4 divisors (see below), whose sum is σ = 12577986960. Its totient is φ = 12577337316.

The previous prime is 12577662131. The next prime is 12577662169. The reversal of 12577662137 is 73126677521.

It is a happy number.

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: 73126677521 = 123001 ⋅594521.

It is a cyclic number.

It is not a de Polignac number, because 12577662137 - 2⁴ = 12577662121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12577662091 and 12577662100.

It is not an unprimeable number, because it can be changed into a prime (12577662131) 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, 95003 + ... + 184880.

It is an arithmetic number, because the mean of its divisors is an integer number (3144496740).

Almost surely, 2^12577662137 is an apocalyptic number.

It is an amenable number.

12577662137 is a deficient number, since it is larger than the sum of its proper divisors (324823).

12577662137 is an equidigital number, since it uses as much as digits as its factorization.

12577662137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324822.

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

The spelling of 12577662137 in words is "twelve billion, five hundred seventy-seven million, six hundred sixty-two thousand, one hundred thirty-seven".