77347733334081 has 8 divisors (see below), whose sum is σ = 117863212699584. Its totient is φ = 44198704762320.

The previous prime is 77347733334073. The next prime is 77347733334181. The reversal of 77347733334081 is 18043333774377.

It is a happy number.

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

It is not a de Polignac number, because 77347733334081 - 2³ = 77347733334073 is a prime.

It is a super-2 number, since 2×77347733334081² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77347733334181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1841612698410 + ... + 1841612698451.

It is an arithmetic number, because the mean of its divisors is an integer number (14732901587448).

Almost surely, 2^{77347733334081} is an apocalyptic number.

It is an amenable number.

77347733334081 is a deficient number, since it is larger than the sum of its proper divisors (40515479365503).

77347733334081 is a wasteful number, since it uses less digits than its factorization.

77347733334081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3683225396871.

The product of its (nonzero) digits is 74680704, while the sum is 60.

The spelling of 77347733334081 in words is "seventy-seven trillion, three hundred forty-seven billion, seven hundred thirty-three million, three hundred thirty-four thousand, eighty-one".