2687099473 has 4 divisors (see below), whose sum is σ = 2689811968. Its totient is φ = 2684386980.

The previous prime is 2687099461. The next prime is 2687099483. The reversal of 2687099473 is 3749907862.

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 an emirpimes, since its reverse is a distinct semiprime: 3749907862 = 2 ⋅1874953931.

It is a cyclic number.

It is not a de Polignac number, because 2687099473 - 2⁹ = 2687098961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2687099483) 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, 1354761 + ... + 1356742.

It is an arithmetic number, because the mean of its divisors is an integer number (672452992).

Almost surely, 2^2687099473 is an apocalyptic number.

It is an amenable number.

2687099473 is a deficient number, since it is larger than the sum of its proper divisors (2712495).

2687099473 is an equidigital number, since it uses as much as digits as its factorization.

2687099473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712494.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The square root of 2687099473 is about 51837.2402139620. The cubic root of 2687099473 is about 1390.2553699846.

The spelling of 2687099473 in words is "two billion, six hundred eighty-seven million, ninety-nine thousand, four hundred seventy-three".