77195006889 has 32 divisors (see below), whose sum is σ = 138195262464. Its totient is φ = 37016585280.

The previous prime is 77195006857. The next prime is 77195006891. The reversal of 77195006889 is 98860059177.

It is not a de Polignac number, because 77195006889 - 2⁵ = 77195006857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77195006389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12849979 + ... + 12855984.

It is an arithmetic number, because the mean of its divisors is an integer number (4318601952).

Almost surely, 2^77195006889 is an apocalyptic number.

It is an amenable number.

77195006889 is a deficient number, since it is larger than the sum of its proper divisors (61000255575).

77195006889 is a wasteful number, since it uses less digits than its factorization.

77195006889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25705997.

The product of its (nonzero) digits is 7620480, while the sum is 60.

The spelling of 77195006889 in words is "seventy-seven billion, one hundred ninety-five million, six thousand, eight hundred eighty-nine".