997907948662 has 8 divisors (see below), whose sum is σ = 1498685143392. Its totient is φ = 498346234200.

The previous prime is 997907948647. The next prime is 997907948683. The reversal of 997907948662 is 266849709799.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303868014 + ... + 303871297.

It is an arithmetic number, because the mean of its divisors is an integer number (187335642924).

Almost surely, 2^997907948662 is an apocalyptic number.

997907948662 is a deficient number, since it is larger than the sum of its proper divisors (500777194730).

997907948662 is a wasteful number, since it uses less digits than its factorization.

997907948662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607740134.

The product of its (nonzero) digits is 740710656, while the sum is 76.

The spelling of 997907948662 in words is "nine hundred ninety-seven billion, nine hundred seven million, nine hundred forty-eight thousand, six hundred sixty-two".