80767604728 has 8 divisors (see below), whose sum is σ = 151439258880. Its totient is φ = 40383802360.

The previous prime is 80767604717. The next prime is 80767604737. The reversal of 80767604728 is 82740676708.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5047975288 + ... + 5047975303.

It is an arithmetic number, because the mean of its divisors is an integer number (18929907360).

Almost surely, 2^80767604728 is an apocalyptic number.

It is an amenable number.

80767604728 is a deficient number, since it is larger than the sum of its proper divisors (70671654152).

80767604728 is a wasteful number, since it uses less digits than its factorization.

80767604728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095950597 (or 10095950593 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 55.

The spelling of 80767604728 in words is "eighty billion, seven hundred sixty-seven million, six hundred four thousand, seven hundred twenty-eight".