999987753321110 has 32 divisors (see below), whose sum is σ = 1801959087422592. Its totient is φ = 399554878394880.

The previous prime is 999987753321097. The next prime is 999987753321143. The reversal of 999987753321110 is 11123357789999.

It is a happy number.

999987753321110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×999987753321110² (a number of 31 digits) contains 22 as substring.

It is a nialpdrome in base 10.

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, 281423930 + ... + 284955090.

It is an arithmetic number, because the mean of its divisors is an integer number (56311221481956).

Almost surely, 2^{999987753321110} is an apocalyptic number.

999987753321110 is a deficient number, since it is larger than the sum of its proper divisors (801971334101482).

999987753321110 is a wasteful number, since it uses less digits than its factorization.

999987753321110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562328.

The product of its (nonzero) digits is 231472080, while the sum is 74.

The spelling of 999987753321110 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 ten".