77214679117 has 4 divisors (see below), whose sum is σ = 77346220896. Its totient is φ = 77083137340.

The previous prime is 77214679109. The next prime is 77214679187. The reversal of 77214679117 is 71197641277.

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 77214679117 - 2³ = 77214679109 is a prime.

It is a super-2 number, since 2×77214679117² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77214679187) 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, 65770009 + ... + 65771182.

It is an arithmetic number, because the mean of its divisors is an integer number (19336555224).

Almost surely, 2^77214679117 is an apocalyptic number.

It is an amenable number.

77214679117 is a deficient number, since it is larger than the sum of its proper divisors (131541779).

77214679117 is a wasteful number, since it uses less digits than its factorization.

77214679117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131541778.

The product of its digits is 1037232, while the sum is 52.

The spelling of 77214679117 in words is "seventy-seven billion, two hundred fourteen million, six hundred seventy-nine thousand, one hundred seventeen".