77343734340 has 72 divisors (see below), whose sum is σ = 246957197760. Its totient is φ = 19539468864.

The previous prime is 77343734317. The next prime is 77343734387. The reversal of 77343734340 is 4343734377.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11304144 + ... + 11310983.

It is an arithmetic number, because the mean of its divisors is an integer number (3429961080).

Almost surely, 2^77343734340 is an apocalyptic number.

It is an amenable number.

77343734340 is an abundant number, since it is smaller than the sum of its proper divisors (169613463420).

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

77343734340 is a wasteful number, since it uses less digits than its factorization.

77343734340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22615161 (or 22615156 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 45.

The spelling of 77343734340 in words is "seventy-seven billion, three hundred forty-three million, seven hundred thirty-four thousand, three hundred forty".