997373801603 has 8 divisors (see below), whose sum is σ = 1021826576736. Its totient is φ = 972927054400.

The previous prime is 997373801597. The next prime is 997373801621. The reversal of 997373801603 is 306108373799.

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 997373801603 - 2³⁰ = 996300059779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997373801623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1171103 + ... + 1834728.

It is an arithmetic number, because the mean of its divisors is an integer number (127728322092).

Almost surely, 2^997373801603 is an apocalyptic number.

997373801603 is a deficient number, since it is larger than the sum of its proper divisors (24452775133).

997373801603 is a wasteful number, since it uses less digits than its factorization.

997373801603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013965.

The product of its (nonzero) digits is 5143824, while the sum is 56.

The spelling of 997373801603 in words is "nine hundred ninety-seven billion, three hundred seventy-three million, eight hundred one thousand, six hundred three".