38706699860 has 24 divisors (see below), whose sum is σ = 82197377640. Its totient is φ = 15308716544.

The previous prime is 38706699847. The next prime is 38706699887. The reversal of 38706699860 is 6899660783.

It can be written as a sum of positive squares in 4 ways, for example, as 321269776 + 38385430084 = 17924^2 + 195922^2 .

It is a super-2 number, since 2×38706699860² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38706699793 and 38706699802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10870889 + ... + 10874448.

It is an arithmetic number, because the mean of its divisors is an integer number (3424890735).

Almost surely, 2^38706699860 is an apocalyptic number.

It is an amenable number.

38706699860 is an abundant number, since it is smaller than the sum of its proper divisors (43490677780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38706699860 is a wasteful number, since it uses less digits than its factorization.

38706699860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21745435 (or 21745433 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 38706699860 in words is "thirty-eight billion, seven hundred six million, six hundred ninety-nine thousand, eight hundred sixty".