12557011384 has 32 divisors (see below), whose sum is σ = 24813936000. Its totient is φ = 5940771552.

The previous prime is 12557011381. The next prime is 12557011387. The reversal of 12557011384 is 48311075521.

It is an interprime number because it is at equal distance from previous prime (12557011381) and next prime (12557011387).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12557011381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74907 + ... + 175285.

It is an arithmetic number, because the mean of its divisors is an integer number (775435500).

Almost surely, 2^12557011384 is an apocalyptic number.

It is an amenable number.

12557011384 is a deficient number, since it is larger than the sum of its proper divisors (12256924616).

12557011384 is a wasteful number, since it uses less digits than its factorization.

12557011384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101227 (or 101223 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 12557011384 in words is "twelve billion, five hundred fifty-seven million, eleven thousand, three hundred eighty-four".