38919939514 has 4 divisors (see below), whose sum is σ = 58379909274. Its totient is φ = 19459969756.

The previous prime is 38919939479. The next prime is 38919939529. The reversal of 38919939514 is 41593991983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41593991983 = 71 ⋅585830873.

It can be written as a sum of positive squares in only one way, i.e., 24443759025 + 14476180489 = 156345^2 + 120317^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9729984877 + ... + 9729984880.

Almost surely, 2^38919939514 is an apocalyptic number.

38919939514 is a deficient number, since it is larger than the sum of its proper divisors (19459969760).

38919939514 is a wasteful number, since it uses less digits than its factorization.

38919939514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19459969759.

The product of its digits is 9447840, while the sum is 61.

The spelling of 38919939514 in words is "thirty-eight billion, nine hundred nineteen million, nine hundred thirty-nine thousand, five hundred fourteen".