9715929078238 has 4 divisors (see below), whose sum is σ = 14573893617360. Its totient is φ = 4857964539118.

The previous prime is 9715929078211. The next prime is 9715929078239. The reversal of 9715929078238 is 8328709295179.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9715929078239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2428982269558 + ... + 2428982269561.

It is an arithmetic number, because the mean of its divisors is an integer number (3643473404340).

Almost surely, 2^{9715929078238} is an apocalyptic number.

9715929078238 is a deficient number, since it is larger than the sum of its proper divisors (4857964539122).

9715929078238 is a wasteful number, since it uses less digits than its factorization.

9715929078238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857964539121.

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 9715929078238 in words is "nine trillion, seven hundred fifteen billion, nine hundred twenty-nine million, seventy-eight thousand, two hundred thirty-eight".