80270261999 has 2 divisors, whose sum is σ = 80270262000. Its totient is φ = 80270261998.

The previous prime is 80270261983. The next prime is 80270262019. The reversal of 80270261999 is 99916207208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80270261999 - 2⁴ = 80270261983 is a prime.

It is a super-2 number, since 2×80270261999² (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 80270261999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80270261909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40135130999 + 40135131000.

It is an arithmetic number, because the mean of its divisors is an integer number (40135131000).

Almost surely, 2^80270261999 is an apocalyptic number.

80270261999 is a deficient number, since it is larger than the sum of its proper divisors (1).

80270261999 is an equidigital number, since it uses as much as digits as its factorization.

80270261999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 80270261999 in words is "eighty billion, two hundred seventy million, two hundred sixty-one thousand, nine hundred ninety-nine".