38491395814658 has 16 divisors (see below), whose sum is σ = 58530454462656. Its totient is φ = 18982693388400.

The previous prime is 38491395814657. The next prime is 38491395814681. The reversal of 38491395814658 is 85641859319483.

It is not an unprimeable number, because it can be changed into a prime (38491395814657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362212016 + ... + 362318267.

It is an arithmetic number, because the mean of its divisors is an integer number (3658153403916).

Almost surely, 2^{38491395814658} is an apocalyptic number.

38491395814658 is a deficient number, since it is larger than the sum of its proper divisors (20039058647998).

38491395814658 is a wasteful number, since it uses less digits than its factorization.

38491395814658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724530649.

The product of its digits is 895795200, while the sum is 74.

The spelling of 38491395814658 in words is "thirty-eight trillion, four hundred ninety-one billion, three hundred ninety-five million, eight hundred fourteen thousand, six hundred fifty-eight".