2587167461 has 4 divisors (see below), whose sum is σ = 2587276512. Its totient is φ = 2587058412.

The previous prime is 2587167449. The next prime is 2587167467. The reversal of 2587167461 is 1647617852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2587167461 - 2²² = 2582973157 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 (2587167467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2201 + ... + 71966.

It is an arithmetic number, because the mean of its divisors is an integer number (646819128).

Almost surely, 2^2587167461 is an apocalyptic number.

It is an amenable number.

2587167461 is a deficient number, since it is larger than the sum of its proper divisors (109051).

2587167461 is an equidigital number, since it uses as much as digits as its factorization.

2587167461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109050.

The product of its digits is 564480, while the sum is 47.

The square root of 2587167461 is about 50864.2060883683. The cubic root of 2587167461 is about 1372.8028753737.

The spelling of 2587167461 in words is "two billion, five hundred eighty-seven million, one hundred sixty-seven thousand, four hundred sixty-one".