2311985064 has 32 divisors (see below), whose sum is σ = 5785269120. Its totient is φ = 769954176.

The previous prime is 2311985029. The next prime is 2311985069. The reversal of 2311985064 is 4605891132.

It is not an unprimeable number, because it can be changed into a prime (2311985069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17197 + ... + 70140.

It is an arithmetic number, because the mean of its divisors is an integer number (180789660).

Almost surely, 2^2311985064 is an apocalyptic number.

2311985064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2311985064 is an abundant number, since it is smaller than the sum of its proper divisors (3473284056).

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

2311985064 is a wasteful number, since it uses less digits than its factorization.

2311985064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88449 (or 88445 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 2311985064 is about 48083.1058065096. The cubic root of 2311985064 is about 1322.2949562460.

The spelling of 2311985064 in words is "two billion, three hundred eleven million, nine hundred eighty-five thousand, sixty-four".