38942215079 has 4 divisors (see below), whose sum is σ = 38944492320. Its totient is φ = 38939937840.

The previous prime is 38942215069. The next prime is 38942215121. The reversal of 38942215079 is 97051224983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97051224983 = 457 ⋅212365919.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38942215079 is a prime.

It is a super-2 number, since 2×38942215079² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38942215069) 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, 1112774 + ... + 1147235.

It is an arithmetic number, because the mean of its divisors is an integer number (9736123080).

Almost surely, 2^38942215079 is an apocalyptic number.

38942215079 is a deficient number, since it is larger than the sum of its proper divisors (2277241).

38942215079 is a wasteful number, since it uses less digits than its factorization.

38942215079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277240.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 38942215079 in words is "thirty-eight billion, nine hundred forty-two million, two hundred fifteen thousand, seventy-nine".