2590961977 has 2 divisors, whose sum is σ = 2590961978. Its totient is φ = 2590961976.

The previous prime is 2590961969. The next prime is 2590961987. The reversal of 2590961977 is 7791690952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2590911801 + 50176 = 50901^2 + 224^2 .

It is a cyclic number.

It is not a de Polignac number, because 2590961977 - 2³ = 2590961969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2590961987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295480988 + 1295480989.

It is an arithmetic number, because the mean of its divisors is an integer number (1295480989).

Almost surely, 2^2590961977 is an apocalyptic number.

It is an amenable number.

2590961977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2590961977 is an equidigital number, since it uses as much as digits as its factorization.

2590961977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2143260, while the sum is 55.

The square root of 2590961977 is about 50901.4928759462. The cubic root of 2590961977 is about 1373.4736962544.

The spelling of 2590961977 in words is "two billion, five hundred ninety million, nine hundred sixty-one thousand, nine hundred seventy-seven".