15205870848 has 144 divisors (see below), whose sum is σ = 48685790720. Its totient is φ = 4115847168.

The previous prime is 15205870843. The next prime is 15205870891. The reversal of 15205870848 is 84807850251.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 15205870797 and 15205870806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15205870843) 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, 27711 + ... + 176577.

Almost surely, 2^15205870848 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 15205870848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24342895360).

15205870848 is an abundant number, since it is smaller than the sum of its proper divisors (33479919872).

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

15205870848 is a wasteful number, since it uses less digits than its factorization.

15205870848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148912 (or 148898 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 48.

The spelling of 15205870848 in words is "fifteen billion, two hundred five million, eight hundred seventy thousand, eight hundred forty-eight".