498669215501 has 2 divisors, whose sum is σ = 498669215502. Its totient is φ = 498669215500.

The previous prime is 498669215449. The next prime is 498669215549. The reversal of 498669215501 is 105512966894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366689591401 + 131979624100 = 605549^2 + 363290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498669215501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498669215701) 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 as a sum of consecutive naturals, namely, 249334607750 + 249334607751.

It is an arithmetic number, because the mean of its divisors is an integer number (249334607751).

Almost surely, 2^498669215501 is an apocalyptic number.

It is an amenable number.

498669215501 is a deficient number, since it is larger than the sum of its proper divisors (1).

498669215501 is an equidigital number, since it uses as much as digits as its factorization.

498669215501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 56.

The spelling of 498669215501 in words is "four hundred ninety-eight billion, six hundred sixty-nine million, two hundred fifteen thousand, five hundred one".