496027921981 has 2 divisors, whose sum is σ = 496027921982. Its totient is φ = 496027921980.

The previous prime is 496027921943. The next prime is 496027921999. The reversal of 496027921981 is 189129720694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487553062500 + 8474859481 = 698250^2 + 92059^2 .

It is a cyclic number.

It is not a de Polignac number, because 496027921981 - 2¹³ = 496027913789 is a prime.

It is a super-3 number, since 3×496027921981³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (496027921681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248013960990 + 248013960991.

It is an arithmetic number, because the mean of its divisors is an integer number (248013960991).

Almost surely, 2^496027921981 is an apocalyptic number.

It is an amenable number.

496027921981 is a deficient number, since it is larger than the sum of its proper divisors (1).

496027921981 is an equidigital number, since it uses as much as digits as its factorization.

496027921981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The spelling of 496027921981 in words is "four hundred ninety-six billion, twenty-seven million, nine hundred twenty-one thousand, nine hundred eighty-one".