77800793159 has 4 divisors (see below), whose sum is σ = 80483579160. Its totient is φ = 75118007160.

The previous prime is 77800793123. The next prime is 77800793173. The reversal of 77800793159 is 95139700877.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77800793159 - 2⁸ = 77800792903 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 (77800793359) 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, 1341392957 + ... + 1341393014.

It is an arithmetic number, because the mean of its divisors is an integer number (20120894790).

Almost surely, 2^77800793159 is an apocalyptic number.

77800793159 is a deficient number, since it is larger than the sum of its proper divisors (2682786001).

77800793159 is a wasteful number, since it uses less digits than its factorization.

77800793159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682786000.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The spelling of 77800793159 in words is "seventy-seven billion, eight hundred million, seven hundred ninety-three thousand, one hundred fifty-nine".