766959639842 has 32 divisors (see below), whose sum is σ = 1289723497920. Its totient is φ = 339049105920.

The previous prime is 766959639841. The next prime is 766959639899. The reversal of 766959639842 is 248936959667.

It is a self number, because there is not a number n which added to its sum of digits gives 766959639842.

It is not an unprimeable number, because it can be changed into a prime (766959639841) 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 15 ways as a sum of consecutive naturals, for example, 1519367 + ... + 1960202.

It is an arithmetic number, because the mean of its divisors is an integer number (40303859310).

Almost surely, 2^766959639842 is an apocalyptic number.

766959639842 is a deficient number, since it is larger than the sum of its proper divisors (522763858078).

766959639842 is a wasteful number, since it uses less digits than its factorization.

766959639842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479858.

The product of its digits is 1058158080, while the sum is 74.

The spelling of 766959639842 in words is "seven hundred sixty-six billion, nine hundred fifty-nine million, six hundred thirty-nine thousand, eight hundred forty-two".