77654242332 has 18 divisors (see below), whose sum is σ = 196292668208. Its totient is φ = 25884747432.

The previous prime is 77654242331. The next prime is 77654242339. The reversal of 77654242332 is 23324245677.

77654242332 is a `hidden beast` number, since 7 + 76 + 5 + 4 + 242 + 332 = 666.

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

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77654242331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1078531108 + ... + 1078531179.

Almost surely, 2^77654242332 is an apocalyptic number.

It is an amenable number.

77654242332 is an abundant number, since it is smaller than the sum of its proper divisors (118638425876).

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

77654242332 is a wasteful number, since it uses less digits than its factorization.

77654242332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157062297 (or 2157062292 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 45.

The spelling of 77654242332 in words is "seventy-seven billion, six hundred fifty-four million, two hundred forty-two thousand, three hundred thirty-two".