12699589472 has 48 divisors (see below), whose sum is σ = 26197994592. Its totient is φ = 6048430080.

The previous prime is 12699589471. The next prime is 12699589501. The reversal of 12699589472 is 27498599621.

It is a super-2 number, since 2×12699589472² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12699589471) 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, 141578 + ... + 213174.

It is an arithmetic number, because the mean of its divisors is an integer number (545791554).

Almost surely, 2^12699589472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12699589472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13098997296).

12699589472 is an abundant number, since it is smaller than the sum of its proper divisors (13498405120).

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

12699589472 is a wasteful number, since it uses less digits than its factorization.

12699589472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71871 (or 71863 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 62.

The spelling of 12699589472 in words is "twelve billion, six hundred ninety-nine million, five hundred eighty-nine thousand, four hundred seventy-two".