15825286243 has 12 divisors (see below), whose sum is σ = 17599405728. Its totient is φ = 14213141280.

The previous prime is 15825286187. The next prime is 15825286261. The reversal of 15825286243 is 34268252851.

It is not a de Polignac number, because 15825286243 - 2⁹ = 15825285731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15825286193 and 15825286202.

It is not an unprimeable number, because it can be changed into a prime (15825286843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1259163 + ... + 1271668.

It is an arithmetic number, because the mean of its divisors is an integer number (1466617144).

Almost surely, 2^15825286243 is an apocalyptic number.

15825286243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15825286243 is a deficient number, since it is larger than the sum of its proper divisors (1774119485).

15825286243 is a wasteful number, since it uses less digits than its factorization.

15825286243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530894 (or 2530881 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

It can be divided in two parts, 1582 and 5286243, that added together give a palindrome (5287825).

The spelling of 15825286243 in words is "fifteen billion, eight hundred twenty-five million, two hundred eighty-six thousand, two hundred forty-three".