15251012340 has 144 divisors (see below), whose sum is σ = 46450474560. Its totient is φ = 3728332800.

The previous prime is 15251012323. The next prime is 15251012363. The reversal of 15251012340 is 4321015251.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15251012340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1088580 + ... + 1102500.

It is an arithmetic number, because the mean of its divisors is an integer number (322572740).

Almost surely, 2^15251012340 is an apocalyptic number.

15251012340 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 15251012340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23225237280).

15251012340 is an abundant number, since it is smaller than the sum of its proper divisors (31199462220).

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

15251012340 is a wasteful number, since it uses less digits than its factorization.

15251012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14014 (or 13981 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15251012340 its reverse (4321015251), we get a palindrome (19572027591).

The spelling of 15251012340 in words is "fifteen billion, two hundred fifty-one million, twelve thousand, three hundred forty".