1212274489608 has 288 divisors, whose sum is σ = 4082434799040. Its totient is φ = 318200762880.

The previous prime is 1212274489597. The next prime is 1212274489627. The reversal of 1212274489608 is 8069844722121.

1212274489608 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 27 + 4 + 4 + 8 + 9 + 608 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 17938410 + ... + 18005862.

It is an arithmetic number, because the mean of its divisors is an integer number (14175120830).

Almost surely, 2^{1212274489608} is an apocalyptic number.

1212274489608 is a gapful number since it is divisible by the number (18) 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 1212274489608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2041217399520).

1212274489608 is an abundant number, since it is smaller than the sum of its proper divisors (2870160309432).

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

1212274489608 is a wasteful number, since it uses less digits than its factorization.

1212274489608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67709 (or 67689 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 1212274489608 in words is "one trillion, two hundred twelve billion, two hundred seventy-four million, four hundred eighty-nine thousand, six hundred eight".