5640874867 has 4 divisors (see below), whose sum is σ = 5886130320. Its totient is φ = 5395619416.

The previous prime is 5640874861. The next prime is 5640874871. The reversal of 5640874867 is 7684780465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7684780465 = 5 ⋅1536956093.

It is a cyclic number.

It is not a de Polignac number, because 5640874867 - 2³ = 5640874859 is a prime.

It is a super-3 number, since 3×5640874867³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5640874861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122627692 + ... + 122627737.

It is an arithmetic number, because the mean of its divisors is an integer number (1471532580).

Almost surely, 2^5640874867 is an apocalyptic number.

5640874867 is a deficient number, since it is larger than the sum of its proper divisors (245255453).

5640874867 is a wasteful number, since it uses less digits than its factorization.

5640874867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245255452.

The product of its (nonzero) digits is 9031680, while the sum is 55.

The square root of 5640874867 is about 75105.7578818029. The cubic root of 5640874867 is about 1780.1181240256.

The spelling of 5640874867 in words is "five billion, six hundred forty million, eight hundred seventy-four thousand, eight hundred sixty-seven".