1968669504 has 42 divisors (see below), whose sum is σ = 5642837330. Its totient is φ = 656222976.

The previous prime is 1968669491. The next prime is 1968669517. The reversal of 1968669504 is 4059668691.

It is a happy number.

1968669504 is a `hidden beast` number, since 19 + 68 + 6 + 69 + 504 = 666.

It is an interprime number because it is at equal distance from previous prime (1968669491) and next prime (1968669517).

It can be written as a sum of positive squares in only one way, i.e., 1818851904 + 149817600 = 42648^2 + 12240^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1708339 + ... + 1709490.

Almost surely, 2^1968669504 is an apocalyptic number.

It is an amenable number.

1968669504 is an abundant number, since it is smaller than the sum of its proper divisors (3674167826).

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

1968669504 is a wasteful number, since it uses less digits than its factorization.

1968669504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417847 (or 3417834 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 1968669504 is about 44369.6912768164. The cubic root of 1968669504 is about 1253.3074020086.

The spelling of 1968669504 in words is "one billion, nine hundred sixty-eight million, six hundred sixty-nine thousand, five hundred four".