5138266385 has 24 divisors (see below), whose sum is σ = 7072672320. Its totient is φ = 3510467424.

The previous prime is 5138266361. The next prime is 5138266423. The reversal of 5138266385 is 5836628315.

It is not a de Polignac number, because 5138266385 - 2⁸ = 5138266129 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8300606 + ... + 8301224.

It is an arithmetic number, because the mean of its divisors is an integer number (294694680).

Almost surely, 2^5138266385 is an apocalyptic number.

It is an amenable number.

5138266385 is a deficient number, since it is larger than the sum of its proper divisors (1934405935).

5138266385 is an frugal number, since it uses more digits than its factorization.

5138266385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1118 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 5138266385 is about 71681.7018840931. The cubic root of 5138266385 is about 1725.5949929570.

The spelling of 5138266385 in words is "five billion, one hundred thirty-eight million, two hundred sixty-six thousand, three hundred eighty-five".