77654689914 has 32 divisors (see below), whose sum is σ = 155580917184. Its totient is φ = 25839682560.

The previous prime is 77654689913. The next prime is 77654689919. The reversal of 77654689914 is 41998645677.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (77654689913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9859482 + ... + 9867354.

It is an arithmetic number, because the mean of its divisors is an integer number (4861903662).

Almost surely, 2^77654689914 is an apocalyptic number.

77654689914 is an abundant number, since it is smaller than the sum of its proper divisors (77926227270).

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

77654689914 is a wasteful number, since it uses less digits than its factorization.

77654689914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10542.

The product of its digits is 91445760, while the sum is 66.

The spelling of 77654689914 in words is "seventy-seven billion, six hundred fifty-four million, six hundred eighty-nine thousand, nine hundred fourteen".