77143105840129 has 4 divisors (see below), whose sum is σ = 88163549531584. Its totient is φ = 66122662148676.

The previous prime is 77143105840013. The next prime is 77143105840133. The reversal of 77143105840129 is 92104850134177.

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 not a de Polignac number, because 77143105840129 - 2¹⁹ = 77143105315841 is a prime.

It is a super-2 number, since 2×77143105840129² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77143105880129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5510221845717 + ... + 5510221845730.

It is an arithmetic number, because the mean of its divisors is an integer number (22040887382896).

Almost surely, 2^{77143105840129} is an apocalyptic number.

It is an amenable number.

77143105840129 is a deficient number, since it is larger than the sum of its proper divisors (11020443691455).

77143105840129 is a wasteful number, since it uses less digits than its factorization.

77143105840129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020443691454.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 77143105840129 in words is "seventy-seven trillion, one hundred forty-three billion, one hundred five million, eight hundred forty thousand, one hundred twenty-nine".