38794965491 has 4 divisors (see below), whose sum is σ = 40836805800. Its totient is φ = 36753125184.

The previous prime is 38794965437. The next prime is 38794965541. The reversal of 38794965491 is 19456949783.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38794965491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38794965691) 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, 1020920126 + ... + 1020920163.

It is an arithmetic number, because the mean of its divisors is an integer number (10209201450).

Almost surely, 2^38794965491 is an apocalyptic number.

38794965491 is a deficient number, since it is larger than the sum of its proper divisors (2041840309).

38794965491 is a wasteful number, since it uses less digits than its factorization.

38794965491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041840308.

The product of its digits is 58786560, while the sum is 65.

The spelling of 38794965491 in words is "thirty-eight billion, seven hundred ninety-four million, nine hundred sixty-five thousand, four hundred ninety-one".