816764088403 has 8 divisors (see below), whose sum is σ = 819967311296. Its totient is φ = 813564648000.

The previous prime is 816764088383. The next prime is 816764088433. The reversal of 816764088403 is 304880467618.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816764088403 is a prime.

It is a super-2 number, since 2×816764088403² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816764088433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512523 + ... + 1377028.

It is an arithmetic number, because the mean of its divisors is an integer number (102495913912).

Almost surely, 2^816764088403 is an apocalyptic number.

816764088403 is a deficient number, since it is larger than the sum of its proper divisors (3203222893).

816764088403 is a wasteful number, since it uses less digits than its factorization.

816764088403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891245.

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 816764088403 in words is "eight hundred sixteen billion, seven hundred sixty-four million, eighty-eight thousand, four hundred three".