674540746779 has 16 divisors (see below), whose sum is σ = 931121867520. Its totient is φ = 433850756640.

The previous prime is 674540746729. The next prime is 674540746787. The reversal of 674540746779 is 977647045476.

674540746779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 674540746779 - 2⁹ = 674540746267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (674540746729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2890527 + ... + 3115160.

It is an arithmetic number, because the mean of its divisors is an integer number (58195116720).

Almost surely, 2^674540746779 is an apocalyptic number.

674540746779 is a deficient number, since it is larger than the sum of its proper divisors (256581120741).

674540746779 is a wasteful number, since it uses less digits than its factorization.

674540746779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6007010.

The product of its (nonzero) digits is 248935680, while the sum is 66.

The spelling of 674540746779 in words is "six hundred seventy-four billion, five hundred forty million, seven hundred forty-six thousand, seven hundred seventy-nine".