899766667998 has 48 divisors (see below), whose sum is σ = 2184200184816. Its totient is φ = 265287467520.

The previous prime is 899766667981. The next prime is 899766668023.

It is a happy number.

899766667998 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61401811 + ... + 61416462.

It is an arithmetic number, because the mean of its divisors is an integer number (45504170517).

Almost surely, 2^899766667998 is an apocalyptic number.

899766667998 is an abundant number, since it is smaller than the sum of its proper divisors (1284433516818).

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

899766667998 is a wasteful number, since it uses less digits than its factorization.

899766667998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122818329 (or 122818326 counting only the distinct ones).

The product of its digits is 26665583616, while the sum is 90.

The spelling of 899766667998 in words is "eight hundred ninety-nine billion, seven hundred sixty-six million, six hundred sixty-seven thousand, nine hundred ninety-eight".