15356000023 has 32 divisors (see below), whose sum is σ = 20045321856. Its totient is φ = 11415748608.

The previous prime is 15356000021. The next prime is 15356000027. The reversal of 15356000023 is 32000065351.

It is a happy number.

It is not a de Polignac number, because 15356000023 - 2¹ = 15356000021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15356000021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940215 + ... + 956407.

It is an arithmetic number, because the mean of its divisors is an integer number (626416308).

Almost surely, 2^15356000023 is an apocalyptic number.

15356000023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15356000023 is a deficient number, since it is larger than the sum of its proper divisors (4689321833).

15356000023 is a wasteful number, since it uses less digits than its factorization.

15356000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16843.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 15356000023 its reverse (32000065351), we get a palindrome (47356065374).

The spelling of 15356000023 in words is "fifteen billion, three hundred fifty-six million, twenty-three", and thus it is an aban number.