1200012759984 has 80 divisors (see below), whose sum is σ = 3201229433600. Its totient is φ = 387117335808.

The previous prime is 1200012759983. The next prime is 1200012760019. The reversal of 1200012759984 is 4899572100021.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1200012759983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2442004 + ... + 2891955.

It is an arithmetic number, because the mean of its divisors is an integer number (40015367920).

Almost surely, 2^{1200012759984} is an apocalyptic number.

It is an amenable number.

1200012759984 is an abundant number, since it is smaller than the sum of its proper divisors (2001216673616).

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

1200012759984 is a wasteful number, since it uses less digits than its factorization.

1200012759984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334122 (or 5334116 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 1200012759984 in words is "one trillion, two hundred billion, twelve million, seven hundred fifty-nine thousand, nine hundred eighty-four".