1974511868 has 12 divisors (see below), whose sum is σ = 3949023792. Its totient is φ = 846219360.

The previous prime is 1974511841. The next prime is 1974511879. The reversal of 1974511868 is 8681154791.

It is a happy number.

1974511868 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 35259113 + ... + 35259168.

It is an arithmetic number, because the mean of its divisors is an integer number (329085316).

Almost surely, 2^1974511868 is an apocalyptic number.

It is an amenable number.

1974511868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1974511868 is a wasteful number, since it uses less digits than its factorization.

1974511868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70518292 (or 70518290 counting only the distinct ones).

The product of its digits is 483840, while the sum is 50.

The square root of 1974511868 is about 44435.4798331243. The cubic root of 1974511868 is about 1254.5459790575.

It can be divided in two parts, 19745 and 11868, that added together give a palindrome (31613).

The spelling of 1974511868 in words is "one billion, nine hundred seventy-four million, five hundred eleven thousand, eight hundred sixty-eight".