997359745042 has 32 divisors (see below), whose sum is σ = 1518086664432. Its totient is φ = 491390828544.

The previous prime is 997359745033. The next prime is 997359745099. The reversal of 997359745042 is 240547953799.

It is a Cunningham number, because it is equal to 998679²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 17574539761 + 979785205281 = 132569^2 + 989841^2 .

It is a super-2 number, since 2×997359745042² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26866638 + ... + 26903734.

Almost surely, 2^997359745042 is an apocalyptic number.

997359745042 is a deficient number, since it is larger than the sum of its proper divisors (520726919390).

997359745042 is a wasteful number, since it uses less digits than its factorization.

997359745042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37902.

The product of its (nonzero) digits is 85730400, while the sum is 64.

The spelling of 997359745042 in words is "nine hundred ninety-seven billion, three hundred fifty-nine million, seven hundred forty-five thousand, forty-two".