2668386432 has 32 divisors (see below), whose sum is σ = 7087902480. Its totient is φ = 889462016.

The previous prime is 2668386269. The next prime is 2668386443. The reversal of 2668386432 is 2346838662.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3474078 + ... + 3474845.

Almost surely, 2^2668386432 is an apocalyptic number.

It is an amenable number.

2668386432 is an abundant number, since it is smaller than the sum of its proper divisors (4419516048).

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

2668386432 is an equidigital number, since it uses as much as digits as its factorization.

2668386432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6948940 (or 6948928 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 48.

The square root of 2668386432 is about 51656.4268218389. The cubic root of 2668386432 is about 1387.0205893112.

The spelling of 2668386432 in words is "two billion, six hundred sixty-eight million, three hundred eighty-six thousand, four hundred thirty-two".