15238678047 has 8 divisors (see below), whose sum is σ = 20334510000. Its totient is φ = 10150982400.

The previous prime is 15238677997. The next prime is 15238678087. The reversal of 15238678047 is 74087683251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15238678047 - 2⁶ = 15238677983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15238678087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029704 + ... + 2037197.

It is an arithmetic number, because the mean of its divisors is an integer number (2541813750).

Almost surely, 2^15238678047 is an apocalyptic number.

15238678047 is a deficient number, since it is larger than the sum of its proper divisors (5095831953).

15238678047 is a wasteful number, since it uses less digits than its factorization.

15238678047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068153.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 15238678047 in words is "fifteen billion, two hundred thirty-eight million, six hundred seventy-eight thousand, forty-seven".