80447842563 has 96 divisors (see below), whose sum is σ = 125833236480. Its totient is φ = 45553305600.

The previous prime is 80447842549. The next prime is 80447842567. The reversal of 80447842563 is 36524874408.

It is not a de Polignac number, because 80447842563 - 2⁶ = 80447842499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80447842567) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 227897395 + ... + 227897747.

It is an arithmetic number, because the mean of its divisors is an integer number (1310762880).

Almost surely, 2^80447842563 is an apocalyptic number.

80447842563 is a deficient number, since it is larger than the sum of its proper divisors (45385393917).

80447842563 is a wasteful number, since it uses less digits than its factorization.

80447842563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 51.

The spelling of 80447842563 in words is "eighty billion, four hundred forty-seven million, eight hundred forty-two thousand, five hundred sixty-three".