77055218318 has 16 divisors (see below), whose sum is σ = 125757053520. Its totient is φ = 35197307136.

The previous prime is 77055218299. The next prime is 77055218321. The reversal of 77055218318 is 81381255077.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15274088 + ... + 15279131.

It is an arithmetic number, because the mean of its divisors is an integer number (7859815845).

Almost surely, 2^77055218318 is an apocalyptic number.

77055218318 is a deficient number, since it is larger than the sum of its proper divisors (48701835202).

77055218318 is a wasteful number, since it uses less digits than its factorization.

77055218318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30553331.

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 77055218318 in words is "seventy-seven billion, fifty-five million, two hundred eighteen thousand, three hundred eighteen".