77081627743 has 4 divisors (see below), whose sum is σ = 77099396920. Its totient is φ = 77063858568.

The previous prime is 77081627717. The next prime is 77081627761. The reversal of 77081627743 is 34772618077.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34772618077 = 251 ⋅138536327.

It is a cyclic number.

It is not a de Polignac number, because 77081627743 - 2¹⁷ = 77081496671 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 (77081627243) 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, 8878080 + ... + 8886757.

It is an arithmetic number, because the mean of its divisors is an integer number (19274849230).

Almost surely, 2^77081627743 is an apocalyptic number.

77081627743 is a deficient number, since it is larger than the sum of its proper divisors (17769177).

77081627743 is a wasteful number, since it uses less digits than its factorization.

77081627743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17769176.

The product of its (nonzero) digits is 2765952, while the sum is 52.

The spelling of 77081627743 in words is "seventy-seven billion, eighty-one million, six hundred twenty-seven thousand, seven hundred forty-three".