77134424344 has 64 divisors (see below), whose sum is σ = 150982963200. Its totient is φ = 36897404544.

The previous prime is 77134424333. The next prime is 77134424351. The reversal of 77134424344 is 44342443177.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 77134424344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38508447 + ... + 38510449.

It is an arithmetic number, because the mean of its divisors is an integer number (2359108800).

Almost surely, 2^77134424344 is an apocalyptic number.

It is an amenable number.

77134424344 is a deficient number, since it is larger than the sum of its proper divisors (73848538856).

77134424344 is a wasteful number, since it uses less digits than its factorization.

77134424344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472 (or 3468 counting only the distinct ones).

The product of its digits is 903168, while the sum is 43.

The spelling of 77134424344 in words is "seventy-seven billion, one hundred thirty-four million, four hundred twenty-four thousand, three hundred forty-four".