12557941488 has 160 divisors (see below), whose sum is σ = 38630860800. Its totient is φ = 3895651584.

The previous prime is 12557941477. The next prime is 12557941541. The reversal of 12557941488 is 88414975521.

12557941488 is a `hidden beast` number, since 1 + 2 + 55 + 79 + 41 + 488 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350553 + ... + 384711.

It is an arithmetic number, because the mean of its divisors is an integer number (241442880).

Almost surely, 2^12557941488 is an apocalyptic number.

12557941488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12557941488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19315430400).

12557941488 is an abundant number, since it is smaller than the sum of its proper divisors (26072919312).

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

12557941488 is a wasteful number, since it uses less digits than its factorization.

12557941488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34236 (or 34224 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The spelling of 12557941488 in words is "twelve billion, five hundred fifty-seven million, nine hundred forty-one thousand, four hundred eighty-eight".