77674851727 has 32 divisors (see below), whose sum is σ = 88750598400. Its totient is φ = 67330771200.

The previous prime is 77674851703. The next prime is 77674851733. The reversal of 77674851727 is 72715847677.

It is a happy number.

It is not a de Polignac number, because 77674851727 - 2¹⁵ = 77674818959 is a prime.

It is a super-3 number, since 3×77674851727³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77674851427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43465728 + ... + 43467514.

It is an arithmetic number, because the mean of its divisors is an integer number (2773456200).

Almost surely, 2^77674851727 is an apocalyptic number.

77674851727 is a deficient number, since it is larger than the sum of its proper divisors (11075746673).

77674851727 is a wasteful number, since it uses less digits than its factorization.

77674851727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447.

The product of its digits is 32269440, while the sum is 61.

The spelling of 77674851727 in words is "seventy-seven billion, six hundred seventy-four million, eight hundred fifty-one thousand, seven hundred twenty-seven".