15438161828180 has 96 divisors (see below), whose sum is σ = 40829657535744. Its totient is φ = 4772297585664.

The previous prime is 15438161828129. The next prime is 15438161828207. The reversal of 15438161828180 is 8182816183451.

It is a super-2 number, since 2×15438161828180² (a number of 27 digits) contains 22 as substring.

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, 98555537 + ... + 98712056.

It is an arithmetic number, because the mean of its divisors is an integer number (425308932664).

Almost surely, 2^{15438161828180} is an apocalyptic number.

15438161828180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15438161828180 is an abundant number, since it is smaller than the sum of its proper divisors (25391495707564).

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

15438161828180 is a wasteful number, since it uses less digits than its factorization.

15438161828180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197267665 (or 197267663 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 56.

The spelling of 15438161828180 in words is "fifteen trillion, four hundred thirty-eight billion, one hundred sixty-one million, eight hundred twenty-eight thousand, one hundred eighty".