77110012 has 24 divisors (see below), whose sum is σ = 157983840. Its totient is φ = 32240640.

The previous prime is 77110009. The next prime is 77110013. The reversal of 77110012 is 21001177.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77110013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32437 + ... + 34732.

It is an arithmetic number, because the mean of its divisors is an integer number (6582660).

Almost surely, 2^77110012 is an apocalyptic number.

It is an amenable number.

77110012 is an abundant number, since it is smaller than the sum of its proper divisors (80873828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77110012 is a wasteful number, since it uses less digits than its factorization.

77110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67221 (or 67219 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 77110012 is about 8781.2306654591. The cubic root of 77110012 is about 425.6345989053.

Adding to 77110012 its reverse (21001177), we get a palindrome (98111189).

The spelling of 77110012 in words is "seventy-seven million, one hundred ten thousand, twelve".