15342157323 has 8 divisors (see below), whose sum is σ = 22729122000. Its totient is φ = 10228104864.

The previous prime is 15342157267. The next prime is 15342157343. The reversal of 15342157323 is 32375124351.

15342157323 is a `hidden beast` number, since 15 + 34 + 21 + 573 + 23 = 666.

It is not a de Polignac number, because 15342157323 - 2⁸ = 15342157067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15342157343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284113998 + ... + 284114051.

It is an arithmetic number, because the mean of its divisors is an integer number (2841140250).

Almost surely, 2^15342157323 is an apocalyptic number.

15342157323 is a deficient number, since it is larger than the sum of its proper divisors (7386964677).

15342157323 is an equidigital number, since it uses as much as digits as its factorization.

15342157323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568228058 (or 568228052 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The spelling of 15342157323 in words is "fifteen billion, three hundred forty-two million, one hundred fifty-seven thousand, three hundred twenty-three".