1974366018240 has 896 divisors, whose sum is σ = 8292276633600. Its totient is φ = 385570160640.

The previous prime is 1974366018211. The next prime is 1974366018241. The reversal of 1974366018240 is 428106634791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1974366018241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 178363426 + ... + 178374494.

Almost surely, 2^{1974366018240} is an apocalyptic number.

1974366018240 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 1974366018240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4146138316800).

1974366018240 is an abundant number, since it is smaller than the sum of its proper divisors (6317910615360).

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

1974366018240 is a wasteful number, since it uses less digits than its factorization.

1974366018240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11253 (or 11243 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 1974366018240 in words is "one trillion, nine hundred seventy-four billion, three hundred sixty-six million, eighteen thousand, two hundred forty".