13181402598 has 32 divisors (see below), whose sum is σ = 32446530816. Its totient is φ = 3476413728.

The previous prime is 13181402539. The next prime is 13181402599. The reversal of 13181402598 is 89520418131.

It is a super-2 number, since 2×13181402598² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13181402599) 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, 12070336 + ... + 12071427.

It is an arithmetic number, because the mean of its divisors is an integer number (1013954088).

Almost surely, 2^13181402598 is an apocalyptic number.

13181402598 is an abundant number, since it is smaller than the sum of its proper divisors (19265128218).

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

13181402598 is a wasteful number, since it uses less digits than its factorization.

13181402598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24141788.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 13181402598 in words is "thirteen billion, one hundred eighty-one million, four hundred two thousand, five hundred ninety-eight".