12652347438 has 24 divisors (see below), whose sum is σ = 27664923000. Its totient is φ = 4178756304.

The previous prime is 12652347431. The next prime is 12652347439. The reversal of 12652347438 is 83474325621.

12652347438 is a `hidden beast` number, since 1 + 26 + 523 + 4 + 74 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12652347393 and 12652347402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12652347431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3222388 + ... + 3226311.

It is an arithmetic number, because the mean of its divisors is an integer number (1152705125).

Almost surely, 2^12652347438 is an apocalyptic number.

12652347438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12652347438 is an abundant number, since it is smaller than the sum of its proper divisors (15012575562).

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

12652347438 is a wasteful number, since it uses less digits than its factorization.

12652347438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448816 (or 6448813 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 12652347438 in words is "twelve billion, six hundred fifty-two million, three hundred forty-seven thousand, four hundred thirty-eight".