6390939785065 has 8 divisors (see below), whose sum is σ = 8366321173248. Its totient is φ = 4647956207280.

The previous prime is 6390939785059. The next prime is 6390939785141. The reversal of 6390939785065 is 5605879390936.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6390939785065 - 2⁷ = 6390939784937 is a prime.

It is a super-2 number, since 2×6390939785065² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6390939784985 and 6390939785003.

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, 58099452537 + ... + 58099452646.

It is an arithmetic number, because the mean of its divisors is an integer number (1045790146656).

Almost surely, 2^{6390939785065} is an apocalyptic number.

It is an amenable number.

6390939785065 is a deficient number, since it is larger than the sum of its proper divisors (1975381388183).

6390939785065 is a wasteful number, since it uses less digits than its factorization.

6390939785065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116198905199.

The product of its (nonzero) digits is 330674400, while the sum is 70.

The spelling of 6390939785065 in words is "six trillion, three hundred ninety billion, nine hundred thirty-nine million, seven hundred eighty-five thousand, sixty-five".