15149481798 has 64 divisors (see below), whose sum is σ = 33987029760. Its totient is φ = 4461379200.

The previous prime is 15149481757. The next prime is 15149481811. The reversal of 15149481798 is 89718494151.

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, 2367988 + ... + 2374376.

It is an arithmetic number, because the mean of its divisors is an integer number (531047340).

Almost surely, 2^15149481798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15149481798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16993514880).

15149481798 is an abundant number, since it is smaller than the sum of its proper divisors (18837547962).

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

15149481798 is a wasteful number, since it uses less digits than its factorization.

15149481798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7413.

The product of its digits is 2903040, while the sum is 57.

The spelling of 15149481798 in words is "fifteen billion, one hundred forty-nine million, four hundred eighty-one thousand, seven hundred ninety-eight".