38905209874 has 4 divisors (see below), whose sum is σ = 58357814814. Its totient is φ = 19452604936.

The previous prime is 38905209851. The next prime is 38905209887. The reversal of 38905209874 is 47890250983.

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

It can be written as a sum of positive squares in only one way, i.e., 38472861025 + 432348849 = 196145^2 + 20793^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9726302467 + ... + 9726302470.

Almost surely, 2^38905209874 is an apocalyptic number.

38905209874 is a deficient number, since it is larger than the sum of its proper divisors (19452604940).

38905209874 is a wasteful number, since it uses less digits than its factorization.

38905209874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19452604939.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 38905209874 in words is "thirty-eight billion, nine hundred five million, two hundred nine thousand, eight hundred seventy-four".