15411981072 has 80 divisors (see below), whose sum is σ = 40718465280. Its totient is φ = 5021952000.

The previous prime is 15411981071. The next prime is 15411981113. The reversal of 15411981072 is 27018911451.

It is a self number, because there is not a number n which added to its sum of digits gives 15411981072.

It is not an unprimeable number, because it can be changed into a prime (15411981071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362872 + ... + 403112.

It is an arithmetic number, because the mean of its divisors is an integer number (508980816).

Almost surely, 2^15411981072 is an apocalyptic number.

15411981072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15411981072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20359232640).

15411981072 is an abundant number, since it is smaller than the sum of its proper divisors (25306484208).

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

15411981072 is a wasteful number, since it uses less digits than its factorization.

15411981072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40432 (or 40426 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 39.

The spelling of 15411981072 in words is "fifteen billion, four hundred eleven million, nine hundred eighty-one thousand, seventy-two".