768690562501 has 4 divisors (see below), whose sum is σ = 768699429772. Its totient is φ = 768681695232.

The previous prime is 768690562481. The next prime is 768690562553. The reversal of 768690562501 is 105265096867.

It is a Cunningham number, because it is equal to 876750²+1.

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 597414601476 + 171275961025 = 772926^2 + 413855^2 .

It is a cyclic number.

It is not a de Polignac number, because 768690562501 - 2¹⁹ = 768690038213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768690562571) 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, 4302306 + ... + 4477411.

It is an arithmetic number, because the mean of its divisors is an integer number (192174857443).

Almost surely, 2^768690562501 is an apocalyptic number.

It is an amenable number.

768690562501 is a deficient number, since it is larger than the sum of its proper divisors (8867271).

768690562501 is an equidigital number, since it uses as much as digits as its factorization.

768690562501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8867270.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 768690562501 in words is "seven hundred sixty-eight billion, six hundred ninety million, five hundred sixty-two thousand, five hundred one".