7677546842081 has 4 divisors (see below), whose sum is σ = 7692283016964. Its totient is φ = 7662810667200.

The previous prime is 7677546842033. The next prime is 7677546842113. The reversal of 7677546842081 is 1802486457767.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 829904602081 + 6847642240000 = 910991^2 + 2616800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7677546842081 is a prime.

It is a super-2 number, since 2×7677546842081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7677546841999 and 7677546842017.

It is not an unprimeable number, because it can be changed into a prime (7677546812081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7368086660 + ... + 7368087701.

It is an arithmetic number, because the mean of its divisors is an integer number (1923070754241).

Almost surely, 2^{7677546842081} is an apocalyptic number.

It is an amenable number.

7677546842081 is a deficient number, since it is larger than the sum of its proper divisors (14736174883).

7677546842081 is a wasteful number, since it uses less digits than its factorization.

7677546842081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14736174882.

The product of its (nonzero) digits is 126443520, while the sum is 65.

The spelling of 7677546842081 in words is "seven trillion, six hundred seventy-seven billion, five hundred forty-six million, eight hundred forty-two thousand, eighty-one".