2311999968 has 48 divisors (see below), whose sum is σ = 6071856336. Its totient is φ = 770304000.

The previous prime is 2311999967. The next prime is 2311999969. The reversal of 2311999968 is 8699991132.

It is an interprime number because it is at equal distance from previous prime (2311999967) and next prime (2311999969).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311999961) 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, 267718 + ... + 276218.

It is an arithmetic number, because the mean of its divisors is an integer number (126497007).

Almost surely, 2^2311999968 is an apocalyptic number.

It is an amenable number.

2311999968 is an abundant number, since it is smaller than the sum of its proper divisors (3759856368).

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

2311999968 is a wasteful number, since it uses less digits than its factorization.

2311999968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11347 (or 11339 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 57.

The square root of 2311999968 is about 48083.2607879291. The cubic root of 2311999968 is about 1322.2977975910.

The spelling of 2311999968 in words is "two billion, three hundred eleven million, nine hundred ninety-nine thousand, nine hundred sixty-eight".