766861712353 has 16 divisors (see below), whose sum is σ = 850086671616. Its totient is φ = 685971555840.

The previous prime is 766861712297. The next prime is 766861712369. The reversal of 766861712353 is 353217168667.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766861712353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 766861712294 and 766861712303.

It is not an unprimeable number, because it can be changed into a prime (766861712053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1892601 + ... + 2261782.

It is an arithmetic number, because the mean of its divisors is an integer number (53130416976).

Almost surely, 2^766861712353 is an apocalyptic number.

It is an amenable number.

766861712353 is a deficient number, since it is larger than the sum of its proper divisors (83224959263).

766861712353 is a wasteful number, since it uses less digits than its factorization.

766861712353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154664.

The product of its digits is 7620480, while the sum is 55.

The spelling of 766861712353 in words is "seven hundred sixty-six billion, eight hundred sixty-one million, seven hundred twelve thousand, three hundred fifty-three".