38682784615720 has 64 divisors (see below), whose sum is σ = 102900018211200. Its totient is φ = 12805335594240.

The previous prime is 38682784615697. The next prime is 38682784615721. The reversal of 38682784615720 is 2751648728683.

It is a super-2 number, since 2×38682784615720² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38682784615721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2381936746 + ... + 2381952985.

It is an arithmetic number, because the mean of its divisors is an integer number (1607812784550).

Almost surely, 2^{38682784615720} is an apocalyptic number.

It is an amenable number.

38682784615720 is an abundant number, since it is smaller than the sum of its proper divisors (64217233595480).

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

38682784615720 is a wasteful number, since it uses less digits than its factorization.

38682784615720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763889778 (or 4763889774 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 67.

The spelling of 38682784615720 in words is "thirty-eight trillion, six hundred eighty-two billion, seven hundred eighty-four million, six hundred fifteen thousand, seven hundred twenty".