15309049386 has 16 divisors (see below), whose sum is σ = 30658877568. Its totient is φ = 5096220000.

The previous prime is 15309049373. The next prime is 15309049387. The reversal of 15309049386 is 68394090351.

15309049386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15309049387) by changing a digit.

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, 1694235 + ... + 1703246.

It is an arithmetic number, because the mean of its divisors is an integer number (1916179848).

Almost surely, 2^15309049386 is an apocalyptic number.

15309049386 is an abundant number, since it is smaller than the sum of its proper divisors (15349828182).

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

15309049386 is a wasteful number, since it uses less digits than its factorization.

15309049386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398237.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 15309049386 in words is "fifteen billion, three hundred nine million, forty-nine thousand, three hundred eighty-six".