15197268450 has 192 divisors, whose sum is σ = 46477025280. Its totient is φ = 3200221440.

The previous prime is 15197268409. The next prime is 15197268451. The reversal of 15197268450 is 5486279151.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15197268450.

It is not an unprimeable number, because it can be changed into a prime (15197268451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11451687 + ... + 11453013.

It is an arithmetic number, because the mean of its divisors is an integer number (242067840).

Almost surely, 2^15197268450 is an apocalyptic number.

15197268450 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 15197268450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23238512640).

15197268450 is an abundant number, since it is smaller than the sum of its proper divisors (31279756830).

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

15197268450 is a wasteful number, since it uses less digits than its factorization.

15197268450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201 (or 2196 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 15197268450 in words is "fifteen billion, one hundred ninety-seven million, two hundred sixty-eight thousand, four hundred fifty".