80928658643 has 8 divisors (see below), whose sum is σ = 94745747040. Its totient is φ = 67675533120.

The previous prime is 80928658639. The next prime is 80928658697. The reversal of 80928658643 is 34685682908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80928658643 - 2² = 80928658639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80928658543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140990408 + ... + 140990981.

It is an arithmetic number, because the mean of its divisors is an integer number (11843218380).

Almost surely, 2^80928658643 is an apocalyptic number.

80928658643 is a deficient number, since it is larger than the sum of its proper divisors (13817088397).

80928658643 is a wasteful number, since it uses less digits than its factorization.

80928658643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281981437.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 80928658643 in words is "eighty billion, nine hundred twenty-eight million, six hundred fifty-eight thousand, six hundred forty-three".