15456445242 has 48 divisors (see below), whose sum is σ = 37852532640. Its totient is φ = 4183697952.

The previous prime is 15456445177. The next prime is 15456445253. The reversal of 15456445242 is 24254465451.

15456445242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 15456445194 and 15456445203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1377913 + ... + 1389084.

It is an arithmetic number, because the mean of its divisors is an integer number (788594430).

Almost surely, 2^15456445242 is an apocalyptic number.

15456445242 is an abundant number, since it is smaller than the sum of its proper divisors (22396087398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15456445242 is a wasteful number, since it uses less digits than its factorization.

15456445242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767035 (or 2767028 counting only the distinct ones).

The product of its digits is 768000, while the sum is 42.

The spelling of 15456445242 in words is "fifteen billion, four hundred fifty-six million, four hundred forty-five thousand, two hundred forty-two".