1278970560000 has 3000 divisors, whose sum is σ = 5951283635880. Its totient is φ = 271724544000.

The previous prime is 1278970559983. The next prime is 1278970560011. The reversal of 1278970560000 is 650798721.

1278970560000 is a `hidden beast` number, since 1 + 2 + 7 + 89 + 7 + 0 + 560 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3000).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 299 ways as a sum of consecutive naturals, for example, 24131519974 + ... + 24131520026.

Almost surely, 2^{1278970560000} is an apocalyptic number.

1278970560000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1278970560000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2975641817940).

1278970560000 is an abundant number, since it is smaller than the sum of its proper divisors (4672313075880).

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

1278970560000 is an frugal number, since it uses more digits than its factorization.

1278970560000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 1278970560000 in words is "one trillion, two hundred seventy-eight billion, nine hundred seventy million, five hundred sixty thousand".