997759281164 has 48 divisors (see below), whose sum is σ = 1768248177696. Its totient is φ = 492574848000.

The previous prime is 997759281151. The next prime is 997759281179. The reversal of 997759281164 is 461182957799.

It is a junction number, because it is equal to n+sod(n) for n = 997759281094 and 997759281103.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 344409764 + ... + 344412660.

It is an arithmetic number, because the mean of its divisors is an integer number (36838503702).

Almost surely, 2^997759281164 is an apocalyptic number.

It is an amenable number.

997759281164 is a deficient number, since it is larger than the sum of its proper divisors (770488896532).

997759281164 is a wasteful number, since it uses less digits than its factorization.

997759281164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5066 (or 5064 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 68.

The spelling of 997759281164 in words is "nine hundred ninety-seven billion, seven hundred fifty-nine million, two hundred eighty-one thousand, one hundred sixty-four".