1200139218768 has 160 divisors (see below), whose sum is σ = 3671819631360. Its totient is φ = 330497556480.

The previous prime is 1200139218749. The next prime is 1200139218791. The reversal of 1200139218768 is 8678129310021.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5515558 + ... + 5729018.

It is an arithmetic number, because the mean of its divisors is an integer number (22948872696).

Almost surely, 2^{1200139218768} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200139218768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1835909815680).

1200139218768 is an abundant number, since it is smaller than the sum of its proper divisors (2471680412592).

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

1200139218768 is a wasteful number, since it uses less digits than its factorization.

1200139218768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214085 (or 214079 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 1200139218768 in words is "one trillion, two hundred billion, one hundred thirty-nine million, two hundred eighteen thousand, seven hundred sixty-eight".