80905101803 has 2 divisors, whose sum is σ = 80905101804. Its totient is φ = 80905101802.

The previous prime is 80905101799. The next prime is 80905101947. The reversal of 80905101803 is 30810150908.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80905101803 - 2² = 80905101799 is a prime.

It is a super-3 number, since 3×80905101803³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (80905101203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40452550901 + 40452550902.

It is an arithmetic number, because the mean of its divisors is an integer number (40452550902).

Almost surely, 2^80905101803 is an apocalyptic number.

80905101803 is a deficient number, since it is larger than the sum of its proper divisors (1).

80905101803 is an equidigital number, since it uses as much as digits as its factorization.

80905101803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 80905101803 in words is "eighty billion, nine hundred five million, one hundred one thousand, eight hundred three".