15354942378 has 16 divisors (see below), whose sum is σ = 32326194720. Its totient is φ = 4848929136.

The previous prime is 15354942377. The next prime is 15354942451. The reversal of 15354942378 is 87324945351.

It is a self number, because there is not a number n which added to its sum of digits gives 15354942378.

It is not an unprimeable number, because it can be changed into a prime (15354942371) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 67346125 + ... + 67346352.

It is an arithmetic number, because the mean of its divisors is an integer number (2020387170).

Almost surely, 2^15354942378 is an apocalyptic number.

15354942378 is an abundant number, since it is smaller than the sum of its proper divisors (16971252342).

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

15354942378 is a wasteful number, since it uses less digits than its factorization.

15354942378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134692501.

The product of its digits is 3628800, while the sum is 51.

The spelling of 15354942378 in words is "fifteen billion, three hundred fifty-four million, nine hundred forty-two thousand, three hundred seventy-eight".