77150650808 has 32 divisors (see below), whose sum is σ = 180352172160. Its totient is φ = 30058694880.

The previous prime is 77150650807. The next prime is 77150650873. The reversal of 77150650808 is 80805605177.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77150650807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62621666 + ... + 62622897.

It is an arithmetic number, because the mean of its divisors is an integer number (5636005380).

Almost surely, 2^77150650808 is an apocalyptic number.

It is an amenable number.

77150650808 is an abundant number, since it is smaller than the sum of its proper divisors (103201521352).

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

77150650808 is a wasteful number, since it uses less digits than its factorization.

77150650808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125244587 (or 125244583 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 77150650808 in words is "seventy-seven billion, one hundred fifty million, six hundred fifty thousand, eight hundred eight".