2636045487 has 6 divisors (see below), whose sum is σ = 3807621272. Its totient is φ = 1757363652.

The previous prime is 2636045453. The next prime is 2636045497. The reversal of 2636045487 is 7845406362.

2636045487 is a `hidden beast` number, since 2 + 63 + 60 + 454 + 87 = 666.

It is not a de Polignac number, because 2636045487 - 2⁸ = 2636045231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2636045407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146446963 + ... + 146446980.

Almost surely, 2^2636045487 is an apocalyptic number.

2636045487 is a deficient number, since it is larger than the sum of its proper divisors (1171575785).

2636045487 is a wasteful number, since it uses less digits than its factorization.

2636045487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292893949 (or 292893946 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The square root of 2636045487 is about 51342.4335905496. The cubic root of 2636045487 is about 1381.3942163403.

The spelling of 2636045487 in words is "two billion, six hundred thirty-six million, forty-five thousand, four hundred eighty-seven".