12534593764 has 81 divisors (see below), whose sum is σ = 28086081219. Its totient is φ = 4876890480.

The previous prime is 12534593741. The next prime is 12534593791. The reversal of 12534593764 is 46739543521.

The square root of 12534593764 is 111958.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 17241169 + ... + 17241895.

Almost surely, 2^12534593764 is an apocalyptic number.

12534593764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12534593764 is the 111958-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12534593764

12534593764 is an abundant number, since it is smaller than the sum of its proper divisors (15551487455).

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

12534593764 is an equidigital number, since it uses as much as digits as its factorization.

12534593764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494 (or 747 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 49.

Multiplying 12534593764 by its sum of digits (49), we get a square (614195094436 = 783706²).

12534593764 divided by its sum of digits (49) gives a square (255808036 = 15994²).

The spelling of 12534593764 in words is "twelve billion, five hundred thirty-four million, five hundred ninety-three thousand, seven hundred sixty-four".