997868883793 has 8 divisors (see below), whose sum is σ = 999437627360. Its totient is φ = 996301088640.

The previous prime is 997868883779. The next prime is 997868883799. The reversal of 997868883793 is 397388868799.

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 997868883793 - 2⁹ = 997868883281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 997868883793.

It is not an unprimeable number, because it can be changed into a prime (997868883799) 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, 1883713 + ... + 2354593.

It is an arithmetic number, because the mean of its divisors is an integer number (124929703420).

Almost surely, 2^997868883793 is an apocalyptic number.

It is an amenable number.

997868883793 is a deficient number, since it is larger than the sum of its proper divisors (1568743567).

997868883793 is a wasteful number, since it uses less digits than its factorization.

997868883793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474207.

The product of its digits is 7900913664, while the sum is 85.

The spelling of 997868883793 in words is "nine hundred ninety-seven billion, eight hundred sixty-eight million, eight hundred eighty-three thousand, seven hundred ninety-three".