13151251998 has 12 divisors (see below), whose sum is σ = 28494379368. Its totient is φ = 4383750660.

The previous prime is 13151251987. The next prime is 13151252011. The reversal of 13151251998 is 89915215131.

It is a happy number.

13151251998 is a `hidden beast` number, since 1 + 31 + 5 + 12 + 519 + 98 = 666.

13151251998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13151251998² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 365312538 + ... + 365312573.

It is an arithmetic number, because the mean of its divisors is an integer number (2374531614).

Almost surely, 2^13151251998 is an apocalyptic number.

13151251998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13151251998 is an abundant number, since it is smaller than the sum of its proper divisors (15343127370).

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

13151251998 is a wasteful number, since it uses less digits than its factorization.

13151251998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730625119 (or 730625116 counting only the distinct ones).

The product of its digits is 97200, while the sum is 45.

The spelling of 13151251998 in words is "thirteen billion, one hundred fifty-one million, two hundred fifty-one thousand, nine hundred ninety-eight".