77232336228 has 18 divisors (see below), whose sum is σ = 195226183334. Its totient is φ = 25744112064.

The previous prime is 77232336227. The next prime is 77232336229. The reversal of 77232336228 is 82263323277.

77232336228 is a `hidden beast` number, since 7 + 72 + 323 + 36 + 228 = 666.

It is an interprime number because it is at equal distance from previous prime (77232336227) and next prime (77232336229).

It can be written as a sum of positive squares in only one way, i.e., 70308764964 + 6923571264 = 265158^2 + 83208^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (77232336227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1072671301 + ... + 1072671372.

Almost surely, 2^77232336228 is an apocalyptic number.

It is an amenable number.

77232336228 is an abundant number, since it is smaller than the sum of its proper divisors (117993847106).

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

77232336228 is a wasteful number, since it uses less digits than its factorization.

77232336228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145342683 (or 2145342678 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The spelling of 77232336228 in words is "seventy-seven billion, two hundred thirty-two million, three hundred thirty-six thousand, two hundred twenty-eight".