12597938958 has 32 divisors (see below), whose sum is σ = 27713590272. Its totient is φ = 3817554840.

The previous prime is 12597938957. The next prime is 12597938959. The reversal of 12597938958 is 85983979521.

It is an interprime number because it is at equal distance from previous prime (12597938957) and next prime (12597938959).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12597938957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 780766 + ... + 796737.

It is an arithmetic number, because the mean of its divisors is an integer number (866049696).

Almost surely, 2^12597938958 is an apocalyptic number.

12597938958 is an abundant number, since it is smaller than the sum of its proper divisors (15115651314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12597938958 is a wasteful number, since it uses less digits than its factorization.

12597938958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577541 (or 1577519 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 66.

The spelling of 12597938958 in words is "twelve billion, five hundred ninety-seven million, nine hundred thirty-eight thousand, nine hundred fifty-eight".