509054990859 has 24 divisors (see below), whose sum is σ = 778660842960. Its totient is φ = 319363504128.

The previous prime is 509054990827. The next prime is 509054990869. The reversal of 509054990859 is 958099450905.

509054990859 is a `hidden beast` number, since 5 + 0 + 9 + 0 + 549 + 9 + 0 + 85 + 9 = 666.

It is not a de Polignac number, because 509054990859 - 2⁵ = 509054990827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 509054990796 and 509054990805.

It is not an unprimeable number, because it can be changed into a prime (509054990869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 917832 + ... + 1364010.

It is an arithmetic number, because the mean of its divisors is an integer number (32444201790).

Almost surely, 2^509054990859 is an apocalyptic number.

509054990859 is a deficient number, since it is larger than the sum of its proper divisors (269605852101).

509054990859 is a wasteful number, since it uses less digits than its factorization.

509054990859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453659 (or 453656 counting only the distinct ones).

The product of its (nonzero) digits is 26244000, while the sum is 63.

The spelling of 509054990859 in words is "five hundred nine billion, fifty-four million, nine hundred ninety thousand, eight hundred fifty-nine".