768690562499 has 4 divisors (see below), whose sum is σ = 768692316000. Its totient is φ = 768688809000.

The previous prime is 768690562481. The next prime is 768690562553. The reversal of 768690562499 is 994265096867.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 768690562499 - 2⁸ = 768690562243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768690562429) 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, 438374 + ... + 1315124.

It is an arithmetic number, because the mean of its divisors is an integer number (192173079000).

Almost surely, 2^768690562499 is an apocalyptic number.

768690562499 is a deficient number, since it is larger than the sum of its proper divisors (1753501).

768690562499 is an equidigital number, since it uses as much as digits as its factorization.

768690562499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753500.

The product of its (nonzero) digits is 352719360, while the sum is 71.

The spelling of 768690562499 in words is "seven hundred sixty-eight billion, six hundred ninety million, five hundred sixty-two thousand, four hundred ninety-nine".