15045138636 has 96 divisors (see below), whose sum is σ = 40209281280. Its totient is φ = 4336147200.

The previous prime is 15045138629. The next prime is 15045138671. The reversal of 15045138636 is 63683154051.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227146 + ... + 285806.

It is an arithmetic number, because the mean of its divisors is an integer number (418846680).

Almost surely, 2^15045138636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15045138636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20104640640).

15045138636 is an abundant number, since it is smaller than the sum of its proper divisors (25164142644).

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

15045138636 is a wasteful number, since it uses less digits than its factorization.

15045138636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58775 (or 58773 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 15045138636 in words is "fifteen billion, forty-five million, one hundred thirty-eight thousand, six hundred thirty-six".