15873700450 has 12 divisors (see below), whose sum is σ = 29525082930. Its totient is φ = 6349480160.

The previous prime is 15873700441. The next prime is 15873700459. The reversal of 15873700450 is 5400737851.

It is an interprime number because it is at equal distance from previous prime (15873700441) and next prime (15873700459).

It can be written as a sum of positive squares in 3 ways, for example, as 8691646441 + 7182054009 = 93229^2 + 84747^2 .

It is not an unprimeable number, because it can be changed into a prime (15873700459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158736955 + ... + 158737054.

Almost surely, 2^15873700450 is an apocalyptic number.

15873700450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15873700450 is a deficient number, since it is larger than the sum of its proper divisors (13651382480).

15873700450 is a wasteful number, since it uses less digits than its factorization.

15873700450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317474021 (or 317474016 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 15873700450 in words is "fifteen billion, eight hundred seventy-three million, seven hundred thousand, four hundred fifty".