77377604647 has 8 divisors (see below), whose sum is σ = 88557704352. Its totient is φ = 66229044000.

The previous prime is 77377604593. The next prime is 77377604657. The reversal of 77377604647 is 74640677377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77377604647 - 2¹⁵ = 77377571879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77377604591 and 77377604600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77377604657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7879504 + ... + 7889317.

It is an arithmetic number, because the mean of its divisors is an integer number (11069713044).

Almost surely, 2^77377604647 is an apocalyptic number.

77377604647 is a deficient number, since it is larger than the sum of its proper divisors (11180099705).

77377604647 is a wasteful number, since it uses less digits than its factorization.

77377604647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15769529.

The product of its (nonzero) digits is 29042496, while the sum is 58.

The spelling of 77377604647 in words is "seventy-seven billion, three hundred seventy-seven million, six hundred four thousand, six hundred forty-seven".