15857243023 has 8 divisors (see below), whose sum is σ = 16119960320. Its totient is φ = 15595291800.

The previous prime is 15857242969. The next prime is 15857243081. The reversal of 15857243023 is 32034275851.

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 15857243023 - 2¹³ = 15857234831 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 (15857243923) 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, 149703 + ... + 232648.

It is an arithmetic number, because the mean of its divisors is an integer number (2014995040).

Almost surely, 2^15857243023 is an apocalyptic number.

15857243023 is a deficient number, since it is larger than the sum of its proper divisors (262717297).

15857243023 is an equidigital number, since it uses as much as digits as its factorization.

15857243023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383037.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 15857243023 in words is "fifteen billion, eight hundred fifty-seven million, two hundred forty-three thousand, twenty-three".