5695477991 has 4 divisors (see below), whose sum is σ = 6509117712. Its totient is φ = 4881838272.

The previous prime is 5695477973. The next prime is 5695477999. The reversal of 5695477991 is 1997745965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1997745965 = 5 ⋅399549193.

It is a cyclic number.

It is not a de Polignac number, because 5695477991 - 2¹⁸ = 5695215847 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 (5695477999) 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, 406819850 + ... + 406819863.

It is an arithmetic number, because the mean of its divisors is an integer number (1627279428).

Almost surely, 2^5695477991 is an apocalyptic number.

5695477991 is a deficient number, since it is larger than the sum of its proper divisors (813639721).

5695477991 is an equidigital number, since it uses as much as digits as its factorization.

5695477991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813639720.

The product of its digits is 21432600, while the sum is 62.

The square root of 5695477991 is about 75468.3906745069. The cubic root of 5695477991 is about 1785.8434804547.

The spelling of 5695477991 in words is "five billion, six hundred ninety-five million, four hundred seventy-seven thousand, nine hundred ninety-one".