499919458497 has 4 divisors (see below), whose sum is σ = 666559278000. Its totient is φ = 333279638996.

The previous prime is 499919458459. The next prime is 499919458583. The reversal of 499919458497 is 794854919994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 499919458497 - 2¹⁹ = 499918934209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499919458427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83319909747 + ... + 83319909752.

It is an arithmetic number, because the mean of its divisors is an integer number (166639819500).

Almost surely, 2^499919458497 is an apocalyptic number.

It is an amenable number.

499919458497 is a deficient number, since it is larger than the sum of its proper divisors (166639819503).

499919458497 is a wasteful number, since it uses less digits than its factorization.

499919458497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166639819502.

The product of its digits is 1058158080, while the sum is 78.

The spelling of 499919458497 in words is "four hundred ninety-nine billion, nine hundred nineteen million, four hundred fifty-eight thousand, four hundred ninety-seven".