674340777680 has 30 divisors (see below), whose sum is σ = 1567859385138. Its totient is φ = 269733373120.

The previous prime is 674340777659. The next prime is 674340777683. The reversal of 674340777680 is 86777043476.

674340777680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 539472622144 + 134868155536 = 734488^2 + 367244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674340777683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7298975 + ... + 7390785.

Almost surely, 2^674340777680 is an apocalyptic number.

It is an amenable number.

674340777680 is an abundant number, since it is smaller than the sum of its proper divisors (893518607458).

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

674340777680 is an frugal number, since it uses more digits than its factorization.

674340777680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183635 (or 91818 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 59.

The spelling of 674340777680 in words is "six hundred seventy-four billion, three hundred forty million, seven hundred seventy-seven thousand, six hundred eighty".