5711778727081 has 4 divisors (see below), whose sum is σ = 6527747116672. Its totient is φ = 4895810337492.

The previous prime is 5711778727069. The next prime is 5711778727139. The reversal of 5711778727081 is 1807278771175.

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.

It is a cyclic number.

It is not a de Polignac number, because 5711778727081 - 2²¹ = 5711776629929 is a prime.

It is a super-2 number, since 2×5711778727081² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5711778727181) 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, 407984194785 + ... + 407984194798.

It is an arithmetic number, because the mean of its divisors is an integer number (1631936779168).

Almost surely, 2^{5711778727081} is an apocalyptic number.

It is an amenable number.

5711778727081 is a deficient number, since it is larger than the sum of its proper divisors (815968389591).

5711778727081 is an equidigital number, since it uses as much as digits as its factorization.

5711778727081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815968389590.

The product of its (nonzero) digits is 10756480, while the sum is 61.

The spelling of 5711778727081 in words is "five trillion, seven hundred eleven billion, seven hundred seventy-eight million, seven hundred twenty-seven thousand, eighty-one".