42869997998 has 4 divisors (see below), whose sum is σ = 64304997000. Its totient is φ = 21434998998.

The previous prime is 42869997949. The next prime is 42869998001. The reversal of 42869997998 is 89979996824.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 10717499498 + ... + 10717499501.

It is an arithmetic number, because the mean of its divisors is an integer number (16076249250).

Almost surely, 2^42869997998 is an apocalyptic number.

42869997998 is a deficient number, since it is larger than the sum of its proper divisors (21434999002).

42869997998 is a wasteful number, since it uses less digits than its factorization.

42869997998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21434999001.

The product of its digits is 1269789696, while the sum is 80.

The spelling of 42869997998 in words is "forty-two billion, eight hundred sixty-nine million, nine hundred ninety-seven thousand, nine hundred ninety-eight".