1374397818624 has 720 divisors, whose sum is σ = 4558359393280. Its totient is φ = 410095042560.

The previous prime is 1374397818623. The next prime is 1374397818671. The reversal of 1374397818624 is 4268187934731.

1374397818624 is a `hidden beast` number, since 1 + 3 + 74 + 397 + 81 + 86 + 24 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374397818623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 525179364 + ... + 525181980.

Almost surely, 2^{1374397818624} 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 1374397818624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2279179696640).

1374397818624 is an abundant number, since it is smaller than the sum of its proper divisors (3183961574656).

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

1374397818624 is a wasteful number, since it uses less digits than its factorization.

1374397818624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738 (or 2715 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 1374397818624 in words is "one trillion, three hundred seventy-four billion, three hundred ninety-seven million, eight hundred eighteen thousand, six hundred twenty-four".