997102327798 has 8 divisors (see below), whose sum is σ = 1497733679520. Its totient is φ = 497857767960.

The previous prime is 997102327709. The next prime is 997102327807. The reversal of 997102327798 is 897723201799.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346696173 + ... + 346699048.

It is an arithmetic number, because the mean of its divisors is an integer number (187216709940).

Almost surely, 2^997102327798 is an apocalyptic number.

997102327798 is a deficient number, since it is larger than the sum of its proper divisors (500631351722).

997102327798 is a wasteful number, since it uses less digits than its factorization.

997102327798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693395942.

The product of its (nonzero) digits is 24004512, while the sum is 64.

The spelling of 997102327798 in words is "nine hundred ninety-seven billion, one hundred two million, three hundred twenty-seven thousand, seven hundred ninety-eight".