77318084276 has 12 divisors (see below), whose sum is σ = 135319055172. Its totient is φ = 38655497088.

The previous prime is 77318084267. The next prime is 77318084279. The reversal of 77318084276 is 67248081377.

It can be written as a sum of positive squares in 2 ways, for example, as 38307884176 + 39010200100 = 195724^2 + 197510^2 .

It is a super-2 number, since 2×77318084276² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77318084279) 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, 836885 + ... + 924668.

It is an arithmetic number, because the mean of its divisors is an integer number (11276587931).

Almost surely, 2^77318084276 is an apocalyptic number.

It is an amenable number.

77318084276 is a deficient number, since it is larger than the sum of its proper divisors (58000970896).

77318084276 is a wasteful number, since it uses less digits than its factorization.

77318084276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772530 (or 1772528 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 53.

The spelling of 77318084276 in words is "seventy-seven billion, three hundred eighteen million, eighty-four thousand, two hundred seventy-six".