12573597987 has 24 divisors (see below), whose sum is σ = 19263671856. Its totient is φ = 7875588096.

The previous prime is 12573597973. The next prime is 12573597997. The reversal of 12573597987 is 78979537521.

12573597987 is a `hidden beast` number, since 1 + 2 + 573 + 59 + 7 + 9 + 8 + 7 = 666.

It is not a de Polignac number, because 12573597987 - 2⁷ = 12573597859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12573597917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17068 + ... + 159494.

It is an arithmetic number, because the mean of its divisors is an integer number (802652994).

Almost surely, 2^12573597987 is an apocalyptic number.

12573597987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12573597987 is a deficient number, since it is larger than the sum of its proper divisors (6690073869).

12573597987 is a wasteful number, since it uses less digits than its factorization.

12573597987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143027 (or 143024 counting only the distinct ones).

The product of its digits is 33339600, while the sum is 63.

The spelling of 12573597987 in words is "twelve billion, five hundred seventy-three million, five hundred ninety-seven thousand, nine hundred eighty-seven".