15947212450 has 24 divisors (see below), whose sum is σ = 31943494548. Its totient is φ = 5888201280.

The previous prime is 15947212447. The next prime is 15947212481. The reversal of 15947212450 is 5421274951.

15947212450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2410122649 + 13537089801 = 49093^2 + 116349^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 12266437 + ... + 12267736.

Almost surely, 2^15947212450 is an apocalyptic number.

15947212450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15947212450 is an abundant number, since it is smaller than the sum of its proper divisors (15996282098).

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

15947212450 is a wasteful number, since it uses less digits than its factorization.

15947212450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24534198 (or 24534193 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 15947212450 in words is "fifteen billion, nine hundred forty-seven million, two hundred twelve thousand, four hundred fifty".