38620346729217 has 16 divisors (see below), whose sum is σ = 56178923824128. Its totient is φ = 23404656563280.

The previous prime is 38620346729213. The next prime is 38620346729249. The reversal of 38620346729217 is 71292764302683.

It is a happy number.

It is not a de Polignac number, because 38620346729217 - 2² = 38620346729213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38620346729213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39868693 + ... + 40825890.

It is an arithmetic number, because the mean of its divisors is an integer number (3511182739008).

Almost surely, 2^{38620346729217} is an apocalyptic number.

It is an amenable number.

38620346729217 is a deficient number, since it is larger than the sum of its proper divisors (17558577094911).

38620346729217 is a wasteful number, since it uses less digits than its factorization.

38620346729217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80709100.

The product of its (nonzero) digits is 36578304, while the sum is 60.

The spelling of 38620346729217 in words is "thirty-eight trillion, six hundred twenty billion, three hundred forty-six million, seven hundred twenty-nine thousand, two hundred seventeen".