15000042823 has 8 divisors (see below), whose sum is σ = 15538551840. Its totient is φ = 14469755520.

The previous prime is 15000042817. The next prime is 15000042833. The reversal of 15000042823 is 32824000051.

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

It is a cyclic number.

It is not a de Polignac number, because 15000042823 - 2⁹ = 15000042311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15000042833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2051715 + ... + 2059012.

It is an arithmetic number, because the mean of its divisors is an integer number (1942318980).

Almost surely, 2^15000042823 is an apocalyptic number.

15000042823 is a deficient number, since it is larger than the sum of its proper divisors (538509017).

15000042823 is an equidigital number, since it uses as much as digits as its factorization.

15000042823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110857.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 15000042823 its reverse (32824000051), we get a palindrome (47824042874).

The spelling of 15000042823 in words is "fifteen billion, forty-two thousand, eight hundred twenty-three".