38394129777 has 8 divisors (see below), whose sum is σ = 52382688864. Its totient is φ = 25000828608.

The previous prime is 38394129773. The next prime is 38394129803. The reversal of 38394129777 is 77792149383.

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

It is not a de Polignac number, because 38394129777 - 2² = 38394129773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38394129777.

It is not an unprimeable number, because it can be changed into a prime (38394129773) 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, 148814328 + ... + 148814585.

It is an arithmetic number, because the mean of its divisors is an integer number (6547836108).

Almost surely, 2^38394129777 is an apocalyptic number.

It is an amenable number.

38394129777 is a deficient number, since it is larger than the sum of its proper divisors (13988559087).

38394129777 is a wasteful number, since it uses less digits than its factorization.

38394129777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297628959.

The product of its digits is 16003008, while the sum is 60.

The spelling of 38394129777 in words is "thirty-eight billion, three hundred ninety-four million, one hundred twenty-nine thousand, seven hundred seventy-seven".