1968255764 has 12 divisors (see below), whose sum is σ = 3462482688. Its totient is φ = 978975000.

The previous prime is 1968255763. The next prime is 1968255787. The reversal of 1968255764 is 4675528691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968255761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287362 + ... + 1288889.

It is an arithmetic number, because the mean of its divisors is an integer number (288540224).

Almost surely, 2^1968255764 is an apocalyptic number.

It is an amenable number.

1968255764 is a deficient number, since it is larger than the sum of its proper divisors (1494226924).

1968255764 is a wasteful number, since it uses less digits than its factorization.

1968255764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576446 (or 2576444 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 53.

The square root of 1968255764 is about 44365.0286148899. The cubic root of 1968255764 is about 1253.2195965587.

The spelling of 1968255764 in words is "one billion, nine hundred sixty-eight million, two hundred fifty-five thousand, seven hundred sixty-four".