15402443982 has 32 divisors (see below), whose sum is σ = 32149176480. Its totient is φ = 4913233920.

The previous prime is 15402443977. The next prime is 15402444053. The reversal of 15402443982 is 28934420451.

It is a happy number.

15402443982 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 15 ways as a sum of consecutive naturals, for example, 372019 + ... + 411342.

It is an arithmetic number, because the mean of its divisors is an integer number (1004661765).

Almost surely, 2^15402443982 is an apocalyptic number.

15402443982 is an abundant number, since it is smaller than the sum of its proper divisors (16746732498).

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

15402443982 is a wasteful number, since it uses less digits than its factorization.

15402443982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783508.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 15402443982 in words is "fifteen billion, four hundred two million, four hundred forty-three thousand, nine hundred eighty-two".