77342743500 has 96 divisors (see below), whose sum is σ = 245696855040. Its totient is φ = 18749752000.

The previous prime is 77342743481. The next prime is 77342743531. The reversal of 77342743500 is 534724377.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2327220 + ... + 2360219.

It is an arithmetic number, because the mean of its divisors is an integer number (2559342240).

Almost surely, 2^77342743500 is an apocalyptic number.

It is an amenable number.

77342743500 is an abundant number, since it is smaller than the sum of its proper divisors (168354111540).

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

77342743500 is a wasteful number, since it uses less digits than its factorization.

77342743500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687472 (or 4687460 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 42.

The spelling of 77342743500 in words is "seventy-seven billion, three hundred forty-two million, seven hundred forty-three thousand, five hundred".