1974648869284 has 135 divisors (see below), whose sum is σ = 4369252878753. Its totient is φ = 780471540576.

The previous prime is 1974648869269. The next prime is 1974648869287. The reversal of 1974648869284 is 4829688464791.

The square root of 1974648869284 is 1405222.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 292107820900 + 1682541048384 = 540470^2 + 1297128^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1974648869284.

It is not an unprimeable number, because it can be changed into a prime (1974648869287) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1790252277 + ... + 1790253379.

Almost surely, 2^{1974648869284} is an apocalyptic number.

1974648869284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1974648869284 is the 1405222-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1974648869284

1974648869284 is an abundant number, since it is smaller than the sum of its proper divisors (2394604009469).

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

1974648869284 is an frugal number, since it uses more digits than its factorization.

1974648869284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264 (or 1125 counting only the distinct ones).

The product of its digits is 1337720832, while the sum is 76.

The spelling of 1974648869284 in words is "one trillion, nine hundred seventy-four billion, six hundred forty-eight million, eight hundred sixty-nine thousand, two hundred eighty-four".