2940191983 has 2 divisors, whose sum is σ = 2940191984. Its totient is φ = 2940191982.

The previous prime is 2940191981. The next prime is 2940192011. The reversal of 2940191983 is 3891910492.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2940191983 - 2¹ = 2940191981 is a prime.

Together with 2940191981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2940191981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1470095991 + 1470095992.

It is an arithmetic number, because the mean of its divisors is an integer number (1470095992).

Almost surely, 2^2940191983 is an apocalyptic number.

2940191983 is a deficient number, since it is larger than the sum of its proper divisors (1).

2940191983 is an equidigital number, since it uses as much as digits as its factorization.

2940191983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 2940191983 is about 54223.5371679126. The cubic root of 2940191983 is about 1432.6009330833.

The spelling of 2940191983 in words is "two billion, nine hundred forty million, one hundred ninety-one thousand, nine hundred eighty-three".