38807882646 has 32 divisors (see below), whose sum is σ = 83595499008. Its totient is φ = 11939559840.

The previous prime is 38807882639. The next prime is 38807882647. The reversal of 38807882646 is 64628870883.

It is a super-2 number, since 2×38807882646² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38807882646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38807882647) 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, 860265 + ... + 904251.

It is an arithmetic number, because the mean of its divisors is an integer number (2612359344).

Almost surely, 2^38807882646 is an apocalyptic number.

38807882646 is an abundant number, since it is smaller than the sum of its proper divisors (44787616362).

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

38807882646 is a wasteful number, since it uses less digits than its factorization.

38807882646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55316.

The product of its (nonzero) digits is 24772608, while the sum is 60.

The spelling of 38807882646 in words is "thirty-eight billion, eight hundred seven million, eight hundred eighty-two thousand, six hundred forty-six".