499971451158 has 32 divisors (see below), whose sum is σ = 1138146397920. Its totient is φ = 162592341120.

The previous prime is 499971451121. The next prime is 499971451181. The reversal of 499971451158 is 851154179994.

499971451158 is a `hidden beast` number, since 4 + 99 + 97 + 1 + 451 + 1 + 5 + 8 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 499971451095 and 499971451104.

It is a congruent number.

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, 112909135 + ... + 112913562.

It is an arithmetic number, because the mean of its divisors is an integer number (35567074935).

Almost surely, 2^499971451158 is an apocalyptic number.

499971451158 is an abundant number, since it is smaller than the sum of its proper divisors (638174946762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499971451158 is a wasteful number, since it uses less digits than its factorization.

499971451158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225822749 (or 225822743 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 63.

The spelling of 499971451158 in words is "four hundred ninety-nine billion, nine hundred seventy-one million, four hundred fifty-one thousand, one hundred fifty-eight".