201912865264 has 40 divisors (see below), whose sum is σ = 427015312128. Its totient is φ = 91725900480.

The previous prime is 201912865261. The next prime is 201912865303. The reversal of 201912865264 is 462568219102.

201912865264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201912865261) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20872 + ... + 635815.

Almost surely, 2^201912865264 is an apocalyptic number.

It is an amenable number.

201912865264 is an abundant number, since it is smaller than the sum of its proper divisors (225102446864).

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

201912865264 is a wasteful number, since it uses less digits than its factorization.

201912865264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658453 (or 658447 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 201912865264 in words is "two hundred one billion, nine hundred twelve million, eight hundred sixty-five thousand, two hundred sixty-four".