1274191367680 has 320 divisors, whose sum is σ = 3880820325888. Its totient is φ = 389653954560.

The previous prime is 1274191367599. The next prime is 1274191367737. The reversal of 1274191367680 is 867631914721.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10386379 + ... + 10508341.

Almost surely, 2^{1274191367680} is an apocalyptic number.

1274191367680 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 1274191367680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1940410162944).

1274191367680 is an abundant number, since it is smaller than the sum of its proper divisors (2606628958208).

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

1274191367680 is a wasteful number, since it uses less digits than its factorization.

1274191367680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122057 (or 122041 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 1274191367680 in words is "one trillion, two hundred seventy-four billion, one hundred ninety-one million, three hundred sixty-seven thousand, six hundred eighty".