6820423864501 has 16 divisors (see below), whose sum is σ = 7741188293440. Its totient is φ = 5957064673920.

The previous prime is 6820423864489. The next prime is 6820423864547. The reversal of 6820423864501 is 1054683240286.

It is not a de Polignac number, because 6820423864501 - 2⁵ = 6820423864469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820423864561) 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, 16823760 + ... + 17224393.

It is an arithmetic number, because the mean of its divisors is an integer number (483824268340).

Almost surely, 2^{6820423864501} is an apocalyptic number.

It is an amenable number.

6820423864501 is a deficient number, since it is larger than the sum of its proper divisors (920764428939).

6820423864501 is a wasteful number, since it uses less digits than its factorization.

6820423864501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34048996.

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 6820423864501 in words is "six trillion, eight hundred twenty billion, four hundred twenty-three million, eight hundred sixty-four thousand, five hundred one".