38849853465 has 24 divisors (see below), whose sum is σ = 67601788488. Its totient is φ = 20639293440.

The previous prime is 38849853397. The next prime is 38849853479. The reversal of 38849853465 is 56435894883.

It is a happy number.

38849853465 is a `hidden beast` number, since 3 + 8 + 8 + 4 + 98 + 534 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18897725961 + 19952127504 = 137469^2 + 141252^2 .

It is not a de Polignac number, because 38849853465 - 2⁸ = 38849853209 is a prime.

It is a super-2 number, since 2×38849853465² (a number of 22 digits) contains 22 as substring.

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, 1668066 + ... + 1691195.

It is an arithmetic number, because the mean of its divisors is an integer number (2816741187).

Almost surely, 2^38849853465 is an apocalyptic number.

It is an amenable number.

38849853465 is a deficient number, since it is larger than the sum of its proper divisors (28751935023).

38849853465 is a wasteful number, since it uses less digits than its factorization.

38849853465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359529 (or 3359526 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 63.

The spelling of 38849853465 in words is "thirty-eight billion, eight hundred forty-nine million, eight hundred fifty-three thousand, four hundred sixty-five".