80999362787 has 8 divisors (see below), whose sum is σ = 92808674400. Its totient is φ = 69249544704.

The previous prime is 80999362727. The next prime is 80999362811. The reversal of 80999362787 is 78726399908.

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 80999362787 - 2⁸ = 80999362531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80999362727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14870462 + ... + 14875907.

It is an arithmetic number, because the mean of its divisors is an integer number (11601084300).

Almost surely, 2^80999362787 is an apocalyptic number.

80999362787 is a deficient number, since it is larger than the sum of its proper divisors (11809311613).

80999362787 is a wasteful number, since it uses less digits than its factorization.

80999362787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29746765.

The product of its (nonzero) digits is 82301184, while the sum is 68.

The spelling of 80999362787 in words is "eighty billion, nine hundred ninety-nine million, three hundred sixty-two thousand, seven hundred eighty-seven".