2691460087 has 4 divisors (see below), whose sum is σ = 2691780696. Its totient is φ = 2691139480.

The previous prime is 2691460063. The next prime is 2691460099. The reversal of 2691460087 is 7800641962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2691460087 - 2¹¹ = 2691458039 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 (2691467087) 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, 147364 + ... + 164617.

It is an arithmetic number, because the mean of its divisors is an integer number (672945174).

Almost surely, 2^2691460087 is an apocalyptic number.

2691460087 is a deficient number, since it is larger than the sum of its proper divisors (320609).

2691460087 is an equidigital number, since it uses as much as digits as its factorization.

2691460087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320608.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 2691460087 is about 51879.2837942083. The cubic root of 2691460087 is about 1391.0069971221.

The spelling of 2691460087 in words is "two billion, six hundred ninety-one million, four hundred sixty thousand, eighty-seven".