12582456891 has 32 divisors (see below), whose sum is σ = 18143258688. Its totient is φ = 7726817280.

The previous prime is 12582456847. The next prime is 12582456893. The reversal of 12582456891 is 19865428521.

It is not a de Polignac number, because 12582456891 - 2⁶ = 12582456827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (12582456893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1132435 + ... + 1143491.

It is an arithmetic number, because the mean of its divisors is an integer number (566976834).

Almost surely, 2^12582456891 is an apocalyptic number.

12582456891 is a deficient number, since it is larger than the sum of its proper divisors (5560801797).

12582456891 is a wasteful number, since it uses less digits than its factorization.

12582456891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11551.

The product of its digits is 1382400, while the sum is 51.

The spelling of 12582456891 in words is "twelve billion, five hundred eighty-two million, four hundred fifty-six thousand, eight hundred ninety-one".