999987753321112 has 64 divisors (see below), whose sum is σ = 1897436476016640. Its totient is φ = 494042086944000.

The previous prime is 999987753321097. The next prime is 999987753321143. The reversal of 999987753321112 is 211123357789999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310562113 + ... + 313765519.

It is an arithmetic number, because the mean of its divisors is an integer number (29647444937760).

Almost surely, 2^{999987753321112} is an apocalyptic number.

It is an amenable number.

999987753321112 is a deficient number, since it is larger than the sum of its proper divisors (897448722695528).

999987753321112 is a wasteful number, since it uses less digits than its factorization.

999987753321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204872 (or 3204868 counting only the distinct ones).

The product of its digits is 462944160, while the sum is 76.

The spelling of 999987753321112 in words is "nine hundred ninety-nine trillion, nine hundred eighty-seven billion, seven hundred fifty-three million, three hundred twenty-one thousand, one hundred twelve".