15148238820 has 192 divisors, whose sum is σ = 51178127616. Its totient is φ = 3298129920.

The previous prime is 15148238803. The next prime is 15148238887. The reversal of 15148238820 is 2883284151.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 293602 + ... + 341318.

It is an arithmetic number, because the mean of its divisors is an integer number (266552748).

Almost surely, 2^15148238820 is an apocalyptic number.

15148238820 is a gapful number since it is divisible by the number (10) 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 15148238820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25589063808).

15148238820 is an abundant number, since it is smaller than the sum of its proper divisors (36029888796).

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

15148238820 is a wasteful number, since it uses less digits than its factorization.

15148238820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47790 (or 47788 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The spelling of 15148238820 in words is "fifteen billion, one hundred forty-eight million, two hundred thirty-eight thousand, eight hundred twenty".