499773871990 has 16 divisors (see below), whose sum is σ = 905322863952. Its totient is φ = 198636238944.

The previous prime is 499773871937. The next prime is 499773871991. The reversal of 499773871990 is 99178377994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499773871991) 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, 159162084 + ... + 159165223.

It is an arithmetic number, because the mean of its divisors is an integer number (56582678997).

Almost surely, 2^499773871990 is an apocalyptic number.

499773871990 is a deficient number, since it is larger than the sum of its proper divisors (405548991962).

499773871990 is a wasteful number, since it uses less digits than its factorization.

499773871990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318327471.

The product of its (nonzero) digits is 216040608, while the sum is 73.

The spelling of 499773871990 in words is "four hundred ninety-nine billion, seven hundred seventy-three million, eight hundred seventy-one thousand, nine hundred ninety".