38605728723 has 8 divisors (see below), whose sum is σ = 54502205328. Its totient is φ = 24223202304.

The previous prime is 38605728719. The next prime is 38605728751. The reversal of 38605728723 is 32782750683.

It is a happy number.

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

It is not a de Polignac number, because 38605728723 - 2² = 38605728719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 756975073 = 38605728723 / (3 + 8 + 6 + 0 + 5 + 7 + 2 + 8 + 7 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (38605728523) 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, 378487486 + ... + 378487587.

It is an arithmetic number, because the mean of its divisors is an integer number (6812775666).

Almost surely, 2^38605728723 is an apocalyptic number.

38605728723 is a deficient number, since it is larger than the sum of its proper divisors (15896476605).

38605728723 is a wasteful number, since it uses less digits than its factorization.

38605728723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756975093.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 38605728723 in words is "thirty-eight billion, six hundred five million, seven hundred twenty-eight thousand, seven hundred twenty-three".