7707661116751 has 4 divisors (see below), whose sum is σ = 7973442534600. Its totient is φ = 7441879698904.

The previous prime is 7707661116733. The next prime is 7707661116781. The reversal of 7707661116751 is 1576111667077.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7707661116751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7707661116692 and 7707661116701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7707661116781) 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, 132890708881 + ... + 132890708938.

It is an arithmetic number, because the mean of its divisors is an integer number (1993360633650).

Almost surely, 2^{7707661116751} is an apocalyptic number.

7707661116751 is a deficient number, since it is larger than the sum of its proper divisors (265781417849).

7707661116751 is a wasteful number, since it uses less digits than its factorization.

7707661116751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265781417848.

The product of its (nonzero) digits is 2593080, while the sum is 55.

The spelling of 7707661116751 in words is "seven trillion, seven hundred seven billion, six hundred sixty-one million, one hundred sixteen thousand, seven hundred fifty-one".