77141145212 has 6 divisors (see below), whose sum is σ = 134997004128. Its totient is φ = 38570572604.

The previous prime is 77141145143. The next prime is 77141145223. The reversal of 77141145212 is 21254114177.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9642643148 + ... + 9642643155.

It is an arithmetic number, because the mean of its divisors is an integer number (22499500688).

Almost surely, 2^77141145212 is an apocalyptic number.

It is an amenable number.

77141145212 is a deficient number, since it is larger than the sum of its proper divisors (57855858916).

77141145212 is a wasteful number, since it uses less digits than its factorization.

77141145212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19285286307 (or 19285286305 counting only the distinct ones).

The product of its digits is 15680, while the sum is 35.

Adding to 77141145212 its reverse (21254114177), we get a palindrome (98395259389).

The spelling of 77141145212 in words is "seventy-seven billion, one hundred forty-one million, one hundred forty-five thousand, two hundred twelve".