38684993611 has 6 divisors (see below), whose sum is σ = 42521522036. Its totient is φ = 35168175900.

The previous prime is 38684993597. The next prime is 38684993717. The reversal of 38684993611 is 11639948683.

It is not a de Polignac number, because 38684993611 - 2⁹ = 38684993099 is a prime.

It is a super-2 number, since 2×38684993611² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38684994611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159855225 + ... + 159855466.

Almost surely, 2^38684993611 is an apocalyptic number.

38684993611 is a deficient number, since it is larger than the sum of its proper divisors (3836528425).

38684993611 is a wasteful number, since it uses less digits than its factorization.

38684993611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319710713 (or 319710702 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 58.

The spelling of 38684993611 in words is "thirty-eight billion, six hundred eighty-four million, nine hundred ninety-three thousand, six hundred eleven".