998962940642 has 8 divisors (see below), whose sum is σ = 1533291955536. Its totient is φ = 487865622132.

The previous prime is 998962940641. The next prime is 998962940687. The reversal of 998962940642 is 246049269899.

998962940642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×998962940642² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (998962940641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5807923988 + ... + 5807924159.

It is an arithmetic number, because the mean of its divisors is an integer number (191661494442).

Almost surely, 2^998962940642 is an apocalyptic number.

998962940642 is a deficient number, since it is larger than the sum of its proper divisors (534329014894).

998962940642 is a wasteful number, since it uses less digits than its factorization.

998962940642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11615848192.

The product of its (nonzero) digits is 120932352, while the sum is 68.

The spelling of 998962940642 in words is "nine hundred ninety-eight billion, nine hundred sixty-two million, nine hundred forty thousand, six hundred forty-two".