998578629042 has 16 divisors (see below), whose sum is σ = 1997172078912. Its totient is φ = 332857072880.

The previous prime is 998578629007. The next prime is 998578629067. The reversal of 998578629042 is 240926875899.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383083 + ... + 1464209.

It is an arithmetic number, because the mean of its divisors is an integer number (124823254932).

Almost surely, 2^998578629042 is an apocalyptic number.

998578629042 is an abundant number, since it is smaller than the sum of its proper divisors (998593449870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998578629042 is a wasteful number, since it uses less digits than its factorization.

998578629042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235073.

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 998578629042 in words is "nine hundred ninety-eight billion, five hundred seventy-eight million, six hundred twenty-nine thousand, forty-two".