15823814242 has 8 divisors (see below), whose sum is σ = 23770991916. Its totient is φ = 7900150272.

The previous prime is 15823814239. The next prime is 15823814269. The reversal of 15823814242 is 24241832851.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15562313001 + 261501241 = 124749^2 + 16171^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 15823814195 and 15823814204.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5876743 + ... + 5879434.

Almost surely, 2^15823814242 is an apocalyptic number.

15823814242 is a deficient number, since it is larger than the sum of its proper divisors (7947177674).

15823814242 is a wasteful number, since it uses less digits than its factorization.

15823814242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11756852.

The product of its digits is 122880, while the sum is 40.

It can be divided in two parts, 158 and 23814242, that added together give a square (23814400 = 4880²).

The spelling of 15823814242 in words is "fifteen billion, eight hundred twenty-three million, eight hundred fourteen thousand, two hundred forty-two".