80784532977 has 8 divisors (see below), whose sum is σ = 112395872064. Its totient is φ = 51514774608.

The previous prime is 80784532949. The next prime is 80784532993. The reversal of 80784532977 is 77923548708.

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

It is not a de Polignac number, because 80784532977 - 2⁷ = 80784532849 is a prime.

It is a super-2 number, since 2×80784532977² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80784532977.

It is not an unprimeable number, because it can be changed into a prime (80784536977) 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, 585395098 + ... + 585395235.

It is an arithmetic number, because the mean of its divisors is an integer number (14049484008).

Almost surely, 2^80784532977 is an apocalyptic number.

It is an amenable number.

80784532977 is a deficient number, since it is larger than the sum of its proper divisors (31611339087).

80784532977 is a wasteful number, since it uses less digits than its factorization.

80784532977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170790359.

The product of its (nonzero) digits is 23708160, while the sum is 60.

The spelling of 80784532977 in words is "eighty billion, seven hundred eighty-four million, five hundred thirty-two thousand, nine hundred seventy-seven".