77007216770217 has 48 divisors (see below), whose sum is σ = 118119235890240. Its totient is φ = 48177404384256.

The previous prime is 77007216770207. The next prime is 77007216770233. The reversal of 77007216770217 is 71207761270077.

It is not a de Polignac number, because 77007216770217 - 2¹⁶ = 77007216704681 is a prime.

It is a super-2 number, since 2×77007216770217² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77007216770207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211064373 + ... + 211428909.

It is an arithmetic number, because the mean of its divisors is an integer number (2460817414380).

Almost surely, 2^{77007216770217} is an apocalyptic number.

It is an amenable number.

77007216770217 is a deficient number, since it is larger than the sum of its proper divisors (41112019120023).

77007216770217 is a wasteful number, since it uses less digits than its factorization.

77007216770217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368582 (or 368579 counting only the distinct ones).

The product of its (nonzero) digits is 2823576, while the sum is 54.

The spelling of 77007216770217 in words is "seventy-seven trillion, seven billion, two hundred sixteen million, seven hundred seventy thousand, two hundred seventeen".