15323981245 has 8 divisors (see below), whose sum is σ = 18420985440. Its totient is φ = 12237713040.

The previous prime is 15323981201. The next prime is 15323981291. The reversal of 15323981245 is 54218932351.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15323981245 - 2¹⁵ = 15323948477 is a prime.

It is a super-2 number, since 2×15323981245² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2680855 + ... + 2686564.

It is an arithmetic number, because the mean of its divisors is an integer number (2302623180).

Almost surely, 2^15323981245 is an apocalyptic number.

It is an amenable number.

15323981245 is a deficient number, since it is larger than the sum of its proper divisors (3097004195).

15323981245 is an equidigital number, since it uses as much as digits as its factorization.

15323981245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5367995.

The product of its digits is 259200, while the sum is 43.

The spelling of 15323981245 in words is "fifteen billion, three hundred twenty-three million, nine hundred eighty-one thousand, two hundred forty-five".