2485517239818 has 96 divisors (see below), whose sum is σ = 5679202314240. Its totient is φ = 784623490560.

The previous prime is 2485517239771. The next prime is 2485517239831. The reversal of 2485517239818 is 8189327155842.

2485517239818 is a `hidden beast` number, since 2 + 4 + 8 + 5 + 517 + 2 + 39 + 81 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4731780 + ... + 5230752.

It is an arithmetic number, because the mean of its divisors is an integer number (59158357440).

Almost surely, 2^{2485517239818} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2485517239818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2839601157120).

2485517239818 is an abundant number, since it is smaller than the sum of its proper divisors (3193685074422).

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

2485517239818 is a wasteful number, since it uses less digits than its factorization.

2485517239818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499204 (or 499201 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 63.

The spelling of 2485517239818 in words is "two trillion, four hundred eighty-five billion, five hundred seventeen million, two hundred thirty-nine thousand, eight hundred eighteen".