15031638048 has 96 divisors (see below), whose sum is σ = 45270900864. Its totient is φ = 4277993472.

The previous prime is 15031638047. The next prime is 15031638053. The reversal of 15031638048 is 84083613051.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 15031637997 and 15031638015.

It is not an unprimeable number, because it can be changed into a prime (15031638043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129186 + ... + 216222.

It is an arithmetic number, because the mean of its divisors is an integer number (471571884).

Almost surely, 2^15031638048 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 15031638048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22635450432).

15031638048 is an abundant number, since it is smaller than the sum of its proper divisors (30239262816).

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

15031638048 is a wasteful number, since it uses less digits than its factorization.

15031638048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87314 (or 87306 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 15031638048 in words is "fifteen billion, thirty-one million, six hundred thirty-eight thousand, forty-eight".