97823653919999 has 8 divisors (see below), whose sum is σ = 111802912222368. Its totient is φ = 83845508267520.

The previous prime is 97823653919989. The next prime is 97823653920043. The reversal of 97823653919999 is 99991935632879.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 97823653919999 - 2⁴⁰ = 96724142292223 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 (97823653919909) 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, 277974062 + ... + 278325755.

It is an arithmetic number, because the mean of its divisors is an integer number (13975364027796).

Almost surely, 2^{97823653919999} is an apocalyptic number.

97823653919999 is a deficient number, since it is larger than the sum of its proper divisors (13979258302369).

97823653919999 is a wasteful number, since it uses less digits than its factorization.

97823653919999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556324945.

The product of its digits is 16070775840, while the sum is 89.

The spelling of 97823653919999 in words is "ninety-seven trillion, eight hundred twenty-three billion, six hundred fifty-three million, nine hundred nineteen thousand, nine hundred ninety-nine".