15909430452 has 12 divisors (see below), whose sum is σ = 37122004416. Its totient is φ = 5303143480.

The previous prime is 15909430429. The next prime is 15909430457. The reversal of 15909430452 is 25403490951.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15909430457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662892924 + ... + 662892947.

It is an arithmetic number, because the mean of its divisors is an integer number (3093500368).

Almost surely, 2^15909430452 is an apocalyptic number.

15909430452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15909430452 is an abundant number, since it is smaller than the sum of its proper divisors (21212573964).

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

15909430452 is a wasteful number, since it uses less digits than its factorization.

15909430452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325785878 (or 1325785876 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 15909430452 in words is "fifteen billion, nine hundred nine million, four hundred thirty thousand, four hundred fifty-two".