499999975555544 has 16 divisors (see below), whose sum is σ = 937502330438520. Its totient is φ = 249999354105280.

The previous prime is 499999975555463. The next prime is 499999975555559. The reversal of 499999975555544 is 445555579999994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75847202 + ... + 82175409.

Almost surely, 2^{499999975555544} is an apocalyptic number.

It is an amenable number.

499999975555544 is a deficient number, since it is larger than the sum of its proper divisors (437502354882976).

499999975555544 is a wasteful number, since it uses less digits than its factorization.

499999975555544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158418130 (or 158418126 counting only the distinct ones).

The product of its digits is 744017400000, while the sum is 98.

The spelling of 499999975555544 in words is "four hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred seventy-five million, five hundred fifty-five thousand, five hundred forty-four".