499498370851 has 2 divisors, whose sum is σ = 499498370852. Its totient is φ = 499498370850.

The previous prime is 499498370843. The next prime is 499498370857. The reversal of 499498370851 is 158073894994.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499498370851 - 2³ = 499498370843 is a prime.

It is not a weakly prime, because it can be changed into another prime (499498370857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249749185425 + 249749185426.

It is an arithmetic number, because the mean of its divisors is an integer number (249749185426).

Almost surely, 2^499498370851 is an apocalyptic number.

499498370851 is a deficient number, since it is larger than the sum of its proper divisors (1).

499498370851 is an equidigital number, since it uses as much as digits as its factorization.

499498370851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 499498370851 in words is "four hundred ninety-nine billion, four hundred ninety-eight million, three hundred seventy thousand, eight hundred fifty-one".