77659489914 has 16 divisors (see below), whose sum is σ = 155554676640. Its totient is φ = 25847213840.

The previous prime is 77659489909. The next prime is 77659489979. The reversal of 77659489914 is 41998495677.

It is an unprimeable number.

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, 9816417 + ... + 9824324.

It is an arithmetic number, because the mean of its divisors is an integer number (9722167290).

Almost surely, 2^77659489914 is an apocalyptic number.

77659489914 is an abundant number, since it is smaller than the sum of its proper divisors (77895186726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77659489914 is a wasteful number, since it uses less digits than its factorization.

77659489914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19641405.

The product of its digits is 137168640, while the sum is 69.

The spelling of 77659489914 in words is "seventy-seven billion, six hundred fifty-nine million, four hundred eighty-nine thousand, nine hundred fourteen".