499944143437 has 2 divisors, whose sum is σ = 499944143438. Its totient is φ = 499944143436.

The previous prime is 499944143399. The next prime is 499944143443. The reversal of 499944143437 is 734341449994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 437098165956 + 62845977481 = 661134^2 + 250691^2 .

It is a cyclic number.

It is not a de Polignac number, because 499944143437 - 2²⁷ = 499809925709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499944143497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249972071718 + 249972071719.

It is an arithmetic number, because the mean of its divisors is an integer number (249972071719).

Almost surely, 2^499944143437 is an apocalyptic number.

It is an amenable number.

499944143437 is a deficient number, since it is larger than the sum of its proper divisors (1).

499944143437 is an equidigital number, since it uses as much as digits as its factorization.

499944143437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47029248, while the sum is 61.

The spelling of 499944143437 in words is "four hundred ninety-nine billion, nine hundred forty-four million, one hundred forty-three thousand, four hundred thirty-seven".