823669883247 has 8 divisors (see below), whose sum is σ = 1098240121600. Its totient is φ = 549106450200.

The previous prime is 823669883233. The next prime is 823669883263. The reversal of 823669883247 is 742388966328.

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

It is not a de Polignac number, because 823669883247 - 2⁸ = 823669882991 is a prime.

It is a super-2 number, since 2×823669883247² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823669883147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411879 + ... + 1908072.

It is an arithmetic number, because the mean of its divisors is an integer number (137280015200).

Almost surely, 2^823669883247 is an apocalyptic number.

823669883247 is a deficient number, since it is larger than the sum of its proper divisors (274570238353).

823669883247 is a wasteful number, since it uses less digits than its factorization.

823669883247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402653.

The product of its digits is 167215104, while the sum is 66.

The spelling of 823669883247 in words is "eight hundred twenty-three billion, six hundred sixty-nine million, eight hundred eighty-three thousand, two hundred forty-seven".