1968310853572 has 72 divisors (see below), whose sum is σ = 4184972164800. Its totient is φ = 793208822208.

The previous prime is 1968310853563. The next prime is 1968310853591. The reversal of 1968310853572 is 2753580138691.

It is a happy number.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 252247 + ... + 2000062.

It is an arithmetic number, because the mean of its divisors is an integer number (58124613400).

Almost surely, 2^{1968310853572} is an apocalyptic number.

It is an amenable number.

1968310853572 is an abundant number, since it is smaller than the sum of its proper divisors (2216661311228).

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

1968310853572 is a wasteful number, since it uses less digits than its factorization.

1968310853572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252425 (or 2252400 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 1968310853572 in words is "one trillion, nine hundred sixty-eight billion, three hundred ten million, eight hundred fifty-three thousand, five hundred seventy-two".