15493063144 has 64 divisors (see below), whose sum is σ = 32987404800. Its totient is φ = 6762610944.

The previous prime is 15493063139. The next prime is 15493063207. The reversal of 15493063144 is 44136039451.

It is a junction number, because it is equal to n+sod(n) for n = 15493063097 and 15493063106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192974 + ... + 1205890.

It is an arithmetic number, because the mean of its divisors is an integer number (515428200).

Almost surely, 2^15493063144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15493063144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16493702400).

15493063144 is an abundant number, since it is smaller than the sum of its proper divisors (17494341656).

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

15493063144 is a wasteful number, since it uses less digits than its factorization.

15493063144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13562 (or 13558 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 15493063144 in words is "fifteen billion, four hundred ninety-three million, sixty-three thousand, one hundred forty-four".