766426618761 has 8 divisors (see below), whose sum is σ = 1027196988960. Its totient is φ = 508303663872.

The previous prime is 766426618757. The next prime is 766426618777. The reversal of 766426618761 is 167816624667.

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

It is not a de Polignac number, because 766426618761 - 2² = 766426618757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 766426618695 and 766426618704.

It is not an unprimeable number, because it can be changed into a prime (766426618781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661853151 + ... + 661854308.

It is an arithmetic number, because the mean of its divisors is an integer number (128399623620).

Almost surely, 2^766426618761 is an apocalyptic number.

It is an amenable number.

766426618761 is a deficient number, since it is larger than the sum of its proper divisors (260770370199).

766426618761 is a wasteful number, since it uses less digits than its factorization.

766426618761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323707655.

The product of its digits is 24385536, while the sum is 60.

The spelling of 766426618761 in words is "seven hundred sixty-six billion, four hundred twenty-six million, six hundred eighteen thousand, seven hundred sixty-one".