15248139438 has 32 divisors (see below), whose sum is σ = 34877016576. Its totient is φ = 4353595488.

The previous prime is 15248139437. The next prime is 15248139527. The reversal of 15248139438 is 83493184251.

15248139438 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 not an unprimeable number, because it can be changed into a prime (15248139437) 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 15 ways as a sum of consecutive naturals, for example, 63906 + ... + 185957.

It is an arithmetic number, because the mean of its divisors is an integer number (1089906768).

Almost surely, 2^15248139438 is an apocalyptic number.

15248139438 is an abundant number, since it is smaller than the sum of its proper divisors (19628877138).

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

15248139438 is a wasteful number, since it uses less digits than its factorization.

15248139438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251328.

The product of its digits is 829440, while the sum is 48.

The spelling of 15248139438 in words is "fifteen billion, two hundred forty-eight million, one hundred thirty-nine thousand, four hundred thirty-eight".