1968687522 has 24 divisors (see below), whose sum is σ = 4269867264. Its totient is φ = 655555704.

The previous prime is 1968687521. The next prime is 1968687557. The reversal of 1968687522 is 2257868691.

It is not an unprimeable number, because it can be changed into a prime (1968687521) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 37938 + ... + 73325.

It is an arithmetic number, because the mean of its divisors is an integer number (177911136).

Almost surely, 2^1968687522 is an apocalyptic number.

1968687522 is an abundant number, since it is smaller than the sum of its proper divisors (2301179742).

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

1968687522 is a wasteful number, since it uses less digits than its factorization.

1968687522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112254 (or 112251 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 1968687522 is about 44369.8943203610. The cubic root of 1968687522 is about 1253.3112255764.

The spelling of 1968687522 in words is "one billion, nine hundred sixty-eight million, six hundred eighty-seven thousand, five hundred twenty-two".