499890216979 has 8 divisors (see below), whose sum is σ = 505596330000. Its totient is φ = 494186090112.

The previous prime is 499890216967. The next prime is 499890216983. The reversal of 499890216979 is 979612098994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 499890216979 - 2¹³ = 499890208787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499890216079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12672 + ... + 999970.

It is an arithmetic number, because the mean of its divisors is an integer number (63199541250).

Almost surely, 2^499890216979 is an apocalyptic number.

499890216979 is a deficient number, since it is larger than the sum of its proper divisors (5706113021).

499890216979 is an equidigital number, since it uses as much as digits as its factorization.

499890216979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993077.

The product of its (nonzero) digits is 158723712, while the sum is 73.

The spelling of 499890216979 in words is "four hundred ninety-nine billion, eight hundred ninety million, two hundred sixteen thousand, nine hundred seventy-nine".