15412221450 has 72 divisors (see below), whose sum is σ = 43586868000. Its totient is φ = 3893611680.

The previous prime is 15412221427. The next prime is 15412221463. The reversal of 15412221450 is 5412221451.

It is a happy number.

15412221450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 892750 + ... + 909849.

Almost surely, 2^15412221450 is an apocalyptic number.

15412221450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15412221450 is an abundant number, since it is smaller than the sum of its proper divisors (28174646550).

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

15412221450 is a wasteful number, since it uses less digits than its factorization.

15412221450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802636 (or 1802628 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Subtracting from 15412221450 its reverse (5412221451), we obtain a palindrome (9999999999).

The spelling of 15412221450 in words is "fifteen billion, four hundred twelve million, two hundred twenty-one thousand, four hundred fifty".