15120434250 has 96 divisors (see below), whose sum is σ = 40942399680. Its totient is φ = 4026520800.

The previous prime is 15120434243. The next prime is 15120434257. The reversal of 15120434250 is 5243402151.

15120434250 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15120434243) and next prime (15120434257).

It is not an unprimeable number, because it can be changed into a prime (15120434257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1766481 + ... + 1775019.

It is an arithmetic number, because the mean of its divisors is an integer number (426483330).

Almost surely, 2^15120434250 is an apocalyptic number.

15120434250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15120434250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20471199840).

15120434250 is an abundant number, since it is smaller than the sum of its proper divisors (25821965430).

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

15120434250 is a wasteful number, since it uses less digits than its factorization.

15120434250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9349 (or 9336 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 15120434250 in words is "fifteen billion, one hundred twenty million, four hundred thirty-four thousand, two hundred fifty".