38923699382929 has 4 divisors (see below), whose sum is σ = 38953896202980. Its totient is φ = 38893502562880.

The previous prime is 38923699382891. The next prime is 38923699382959. The reversal of 38923699382929 is 92928399632983.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11047992117904 + 27875707265025 = 3323852^2 + 5279745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38923699382929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38923699382959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15098408092 + ... + 15098410669.

It is an arithmetic number, because the mean of its divisors is an integer number (9738474050745).

Almost surely, 2^{38923699382929} is an apocalyptic number.

It is an amenable number.

38923699382929 is a deficient number, since it is larger than the sum of its proper divisors (30196820051).

38923699382929 is a wasteful number, since it uses less digits than its factorization.

38923699382929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30196820050.

The product of its digits is 4897760256, while the sum is 82.

The spelling of 38923699382929 in words is "thirty-eight trillion, nine hundred twenty-three billion, six hundred ninety-nine million, three hundred eighty-two thousand, nine hundred twenty-nine".