6820423864500 has 96 divisors (see below), whose sum is σ = 20100364712064. Its totient is φ = 1796866656000.

The previous prime is 6820423864489. The next prime is 6820423864547. The reversal of 6820423864500 is 54683240286.

It is a super-2 number, since 2×6820423864500² (a number of 26 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 6820423864500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27266761 + ... + 27515760.

It is an arithmetic number, because the mean of its divisors is an integer number (209378799084).

Almost surely, 2^{6820423864500} is an apocalyptic number.

6820423864500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6820423864500 is an abundant number, since it is smaller than the sum of its proper divisors (13279940847564).

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

6820423864500 is a wasteful number, since it uses less digits than its factorization.

6820423864500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54782626 (or 54782614 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 6820423864500 in words is "six trillion, eight hundred twenty billion, four hundred twenty-three million, eight hundred sixty-four thousand, five hundred".