80898810851 has 2 divisors, whose sum is σ = 80898810852. Its totient is φ = 80898810850.

The previous prime is 80898810847. The next prime is 80898810887. The reversal of 80898810851 is 15801889808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80898810851 - 2² = 80898810847 is a prime.

It is not a weakly prime, because it can be changed into another prime (80898819851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40449405425 + 40449405426.

It is an arithmetic number, because the mean of its divisors is an integer number (40449405426).

Almost surely, 2^80898810851 is an apocalyptic number.

80898810851 is a deficient number, since it is larger than the sum of its proper divisors (1).

80898810851 is an equidigital number, since it uses as much as digits as its factorization.

80898810851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1474560, while the sum is 56.

The spelling of 80898810851 in words is "eighty billion, eight hundred ninety-eight million, eight hundred ten thousand, eight hundred fifty-one".