15715144450 has 24 divisors (see below), whose sum is σ = 30501047808. Its totient is φ = 6012750480.

The previous prime is 15715144429. The next prime is 15715144451. The reversal of 15715144450 is 5444151751.

It is not an unprimeable number, because it can be changed into a prime (15715144451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6831522 + ... + 6833821.

It is an arithmetic number, because the mean of its divisors is an integer number (1270876992).

Almost surely, 2^15715144450 is an apocalyptic number.

15715144450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15715144450 is a deficient number, since it is larger than the sum of its proper divisors (14785903358).

15715144450 is a wasteful number, since it uses less digits than its factorization.

15715144450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13665378 (or 13665373 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 37.

It can be divided in two parts, 157151 and 44450, that added together give a square (201601 = 449²).

The spelling of 15715144450 in words is "fifteen billion, seven hundred fifteen million, one hundred forty-four thousand, four hundred fifty".