12601144782 has 32 divisors (see below), whose sum is σ = 28081913760. Its totient is φ = 4188476160.

The previous prime is 12601144747. The next prime is 12601144789. The reversal of 12601144782 is 28744110621.

It is a happy number.

12601144782 is a `hidden beast` number, since 1 + 2 + 601 + 1 + 4 + 47 + 8 + 2 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12601144789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311469 + ... + 349592.

It is an arithmetic number, because the mean of its divisors is an integer number (877559805).

Almost surely, 2^12601144782 is an apocalyptic number.

12601144782 is an abundant number, since it is smaller than the sum of its proper divisors (15480768978).

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

12601144782 is a wasteful number, since it uses less digits than its factorization.

12601144782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661425 (or 661419 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 12601144782 in words is "twelve billion, six hundred one million, one hundred forty-four thousand, seven hundred eighty-two".