7999031400012 has 18 divisors (see below), whose sum is σ = 20219773816788. Its totient is φ = 2666343799992.

The previous prime is 7999031399981. The next prime is 7999031400029. The reversal of 7999031400012 is 2100041309997.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 111097658298 + ... + 111097658369.

Almost surely, 2^{7999031400012} is an apocalyptic number.

It is an amenable number.

7999031400012 is an abundant number, since it is smaller than the sum of its proper divisors (12220742416776).

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

7999031400012 is a wasteful number, since it uses less digits than its factorization.

7999031400012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222195316677 (or 222195316672 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 7999031400012 in words is "seven trillion, nine hundred ninety-nine billion, thirty-one million, four hundred thousand, twelve".