80982749251 has 2 divisors, whose sum is σ = 80982749252. Its totient is φ = 80982749250.

The previous prime is 80982749201. The next prime is 80982749321. The reversal of 80982749251 is 15294728908.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80982749251 - 2⁹ = 80982748739 is a prime.

It is a super-2 number, since 2×80982749251² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80982749192 and 80982749201.

It is not a weakly prime, because it can be changed into another prime (80982749201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40491374625 + 40491374626.

It is an arithmetic number, because the mean of its divisors is an integer number (40491374626).

Almost surely, 2^80982749251 is an apocalyptic number.

80982749251 is a deficient number, since it is larger than the sum of its proper divisors (1).

80982749251 is an equidigital number, since it uses as much as digits as its factorization.

80982749251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 80982749251 in words is "eighty billion, nine hundred eighty-two million, seven hundred forty-nine thousand, two hundred fifty-one".