499999427555 has 16 divisors (see below), whose sum is σ = 631721613600. Its totient is φ = 378860901120.

The previous prime is 499999427519. The next prime is 499999427569. The reversal of 499999427555 is 555724999994.

It is a happy number.

It is not a de Polignac number, because 499999427555 - 2⁸ = 499999427299 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175250 + ... + 1015239.

It is an arithmetic number, because the mean of its divisors is an integer number (39482600850).

Almost surely, 2^499999427555 is an apocalyptic number.

499999427555 is a deficient number, since it is larger than the sum of its proper divisors (131722186045).

499999427555 is a wasteful number, since it uses less digits than its factorization.

499999427555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194934.

The product of its digits is 1653372000, while the sum is 77.

The spelling of 499999427555 in words is "four hundred ninety-nine billion, nine hundred ninety-nine million, four hundred twenty-seven thousand, five hundred fifty-five".