12393474520 has 48 divisors (see below), whose sum is σ = 31873725360. Its totient is φ = 4248552576.

The previous prime is 12393474503. The next prime is 12393474559. The reversal of 12393474520 is 2547439321.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1859514 + ... + 1866166.

It is an arithmetic number, because the mean of its divisors is an integer number (664035945).

Almost surely, 2^12393474520 is an apocalyptic number.

12393474520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12393474520 is an abundant number, since it is smaller than the sum of its proper divisors (19480250840).

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

12393474520 is an frugal number, since it uses more digits than its factorization.

12393474520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13324 (or 6667 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 12393474520 in words is "twelve billion, three hundred ninety-three million, four hundred seventy-four thousand, five hundred twenty".