498236927881 has 81 divisors (see below), whose sum is σ = 650615391783. Its totient is φ = 380147423040.

The previous prime is 498236927863. The next prime is 498236927897. The reversal of 498236927881 is 188729632894.

The square root of 498236927881 is 705859.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 95672057481 + 402564870400 = 309309^2 + 634480^2 .

It is not a de Polignac number, because 498236927881 - 2¹³ = 498236919689 is a prime.

It is a super-2 number, since 2×498236927881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (498236927861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 4837251676 + ... + 4837251778.

Almost surely, 2^498236927881 is an apocalyptic number.

498236927881 is the 705859-th square number.

498236927881 is the 352930-th centered octagonal number.

It is an amenable number.

498236927881 is a deficient number, since it is larger than the sum of its proper divisors (152378463902).

498236927881 is an equidigital number, since it uses as much as digits as its factorization.

498236927881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 210 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 67.

The spelling of 498236927881 in words is "four hundred ninety-eight billion, two hundred thirty-six million, nine hundred twenty-seven thousand, eight hundred eighty-one".