2149367977 has 2 divisors, whose sum is σ = 2149367978. Its totient is φ = 2149367976.

The previous prime is 2149367923. The next prime is 2149368017. The reversal of 2149367977 is 7797639412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1553226921 + 596141056 = 39411^2 + 24416^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149367977 - 2⁷ = 2149367849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149367377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074683988 + 1074683989.

It is an arithmetic number, because the mean of its divisors is an integer number (1074683989).

Almost surely, 2^2149367977 is an apocalyptic number.

It is an amenable number.

2149367977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149367977 is an equidigital number, since it uses as much as digits as its factorization.

2149367977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000752, while the sum is 55.

The square root of 2149367977 is about 46361.2766972610. The cubic root of 2149367977 is about 1290.5363987251.

The spelling of 2149367977 in words is "two billion, one hundred forty-nine million, three hundred sixty-seven thousand, nine hundred seventy-seven".