1964815068 has 12 divisors (see below), whose sum is σ = 4584568520. Its totient is φ = 654938352.

The previous prime is 1964815057. The next prime is 1964815087. The reversal of 1964815068 is 8605184691.

It is a tau number, because it is divible by the number of its divisors (12).

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, 81867283 + ... + 81867306.

Almost surely, 2^1964815068 is an apocalyptic number.

It is an amenable number.

1964815068 is an abundant number, since it is smaller than the sum of its proper divisors (2619753452).

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

1964815068 is a wasteful number, since it uses less digits than its factorization.

1964815068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163734596 (or 163734594 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 1964815068 is about 44326.2345344154. The cubic root of 1964815068 is about 1252.4889220975.

It can be divided in two parts, 19648 and 15068, that added together give a triangular number (34716 = T₂₆₃).

The spelling of 1964815068 in words is "one billion, nine hundred sixty-four million, eight hundred fifteen thousand, sixty-eight".