2631648587 has 4 divisors (see below), whose sum is σ = 2722395120. Its totient is φ = 2540902056.

The previous prime is 2631648541. The next prime is 2631648611. The reversal of 2631648587 is 7858461362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7858461362 = 2 ⋅3929230681.

It is a cyclic number.

It is not a de Polignac number, because 2631648587 - 2¹⁰ = 2631647563 is a prime.

It is a super-3 number, since 3×2631648587³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2631648787) 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, 45373223 + ... + 45373280.

It is an arithmetic number, because the mean of its divisors is an integer number (680598780).

Almost surely, 2^2631648587 is an apocalyptic number.

2631648587 is a deficient number, since it is larger than the sum of its proper divisors (90746533).

2631648587 is an equidigital number, since it uses as much as digits as its factorization.

2631648587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90746532.

The product of its digits is 1935360, while the sum is 50.

The square root of 2631648587 is about 51299.5963629345. The cubic root of 2631648587 is about 1380.6257378959.

The spelling of 2631648587 in words is "two billion, six hundred thirty-one million, six hundred forty-eight thousand, five hundred eighty-seven".