13557098844 has 24 divisors (see below), whose sum is σ = 35148034320. Its totient is φ = 4519032912.

The previous prime is 13557098837. The next prime is 13557098879. The reversal of 13557098844 is 44889075531.

13557098844 is a `hidden beast` number, since 1 + 3 + 557 + 0 + 9 + 8 + 84 + 4 = 666.

It is a super-2 number, since 2×13557098844² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 62764239 + ... + 62764454.

It is an arithmetic number, because the mean of its divisors is an integer number (1464501430).

Almost surely, 2^13557098844 is an apocalyptic number.

It is an amenable number.

13557098844 is an abundant number, since it is smaller than the sum of its proper divisors (21590935476).

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

13557098844 is a wasteful number, since it uses less digits than its factorization.

13557098844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125528706 (or 125528698 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 13557098844 in words is "thirteen billion, five hundred fifty-seven million, ninety-eight thousand, eight hundred forty-four".