80651305777 has 8 divisors (see below), whose sum is σ = 94664081216. Its totient is φ = 67261320432.

The previous prime is 80651305771. The next prime is 80651305793. The reversal of 80651305777 is 77750315608.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80651305777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80651305777.

It is not an unprimeable number, because it can be changed into a prime (80651305771) 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, 155697243 + ... + 155697760.

It is an arithmetic number, because the mean of its divisors is an integer number (11833010152).

Almost surely, 2^80651305777 is an apocalyptic number.

It is an amenable number.

80651305777 is a deficient number, since it is larger than the sum of its proper divisors (14012775439).

80651305777 is a wasteful number, since it uses less digits than its factorization.

80651305777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311395047.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 80651305777 in words is "eighty billion, six hundred fifty-one million, three hundred five thousand, seven hundred seventy-seven".