2577672457 has 2 divisors, whose sum is σ = 2577672458. Its totient is φ = 2577672456.

The previous prime is 2577672403. The next prime is 2577672463. The reversal of 2577672457 is 7542767752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1622800656 + 954871801 = 40284^2 + 30901^2 .

It is a cyclic number.

It is not a de Polignac number, because 2577672457 - 2¹¹ = 2577670409 is a prime.

It is not a weakly prime, because it can be changed into another prime (2577672467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1288836228 + 1288836229.

It is an arithmetic number, because the mean of its divisors is an integer number (1288836229).

Almost surely, 2^2577672457 is an apocalyptic number.

It is an amenable number.

2577672457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2577672457 is an equidigital number, since it uses as much as digits as its factorization.

2577672457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5762400, while the sum is 52.

The square root of 2577672457 is about 50770.7834979922. The cubic root of 2577672457 is about 1371.1214035690.

The spelling of 2577672457 in words is "two billion, five hundred seventy-seven million, six hundred seventy-two thousand, four hundred fifty-seven".