15242278078 has 16 divisors (see below), whose sum is σ = 24122362320. Its totient is φ = 7203344256.

The previous prime is 15242278067. The next prime is 15242278099. The reversal of 15242278078 is 87087224251.

It is a happy number.

15242278078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 446725 + ... + 479632.

It is an arithmetic number, because the mean of its divisors is an integer number (1507647645).

Almost surely, 2^15242278078 is an apocalyptic number.

15242278078 is a deficient number, since it is larger than the sum of its proper divisors (8880084242).

15242278078 is a wasteful number, since it uses less digits than its factorization.

15242278078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926811.

The product of its (nonzero) digits is 501760, while the sum is 46.

The spelling of 15242278078 in words is "fifteen billion, two hundred forty-two million, two hundred seventy-eight thousand, seventy-eight".