15449315112 has 256 divisors, whose sum is σ = 56321280000. Its totient is φ = 3801530880.

The previous prime is 15449315111. The next prime is 15449315137. The reversal of 15449315112 is 21151394451.

15449315112 is a `hidden beast` number, since 1 + 5 + 4 + 493 + 151 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (15449315111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 291564 + ... + 340452.

It is an arithmetic number, because the mean of its divisors is an integer number (220005000).

Almost surely, 2^15449315112 is an apocalyptic number.

15449315112 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 15449315112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28160640000).

15449315112 is an abundant number, since it is smaller than the sum of its proper divisors (40871964888).

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

15449315112 is a wasteful number, since it uses less digits than its factorization.

15449315112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48941 (or 48931 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The spelling of 15449315112 in words is "fifteen billion, four hundred forty-nine million, three hundred fifteen thousand, one hundred twelve".