15197100450 has 96 divisors (see below), whose sum is σ = 43182605184. Its totient is φ = 3464778240.

The previous prime is 15197100449. The next prime is 15197100497. The reversal of 15197100450 is 5400179151.

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, 398622 + ... + 435078.

It is an arithmetic number, because the mean of its divisors is an integer number (449818804).

Almost surely, 2^15197100450 is an apocalyptic number.

15197100450 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 15197100450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21591302592).

15197100450 is an abundant number, since it is smaller than the sum of its proper divisors (27985504734).

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

15197100450 is a wasteful number, since it uses less digits than its factorization.

15197100450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36876 (or 36871 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 33.

The spelling of 15197100450 in words is "fifteen billion, one hundred ninety-seven million, one hundred thousand, four hundred fifty".