15238085808738 has 32 divisors (see below), whose sum is σ = 33215920145856. Its totient is φ = 4632152125248.

The previous prime is 15238085808713. The next prime is 15238085808763. The reversal of 15238085808738 is 83780858083251.

15238085808738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15238085808713) and next prime (15238085808763).

It is a super-2 number, since 2×15238085808738² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176861445 + ... + 1176874392.

It is an arithmetic number, because the mean of its divisors is an integer number (1037997504558).

Almost surely, 2^{15238085808738} is an apocalyptic number.

15238085808738 is an abundant number, since it is smaller than the sum of its proper divisors (17977834337118).

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

15238085808738 is a wasteful number, since it uses less digits than its factorization.

15238085808738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353735938.

The product of its (nonzero) digits is 103219200, while the sum is 66.

The spelling of 15238085808738 in words is "fifteen trillion, two hundred thirty-eight billion, eighty-five million, eight hundred eight thousand, seven hundred thirty-eight".