10485240138 has 24 divisors (see below), whose sum is σ = 23705761248. Its totient is φ = 3343119912.

The previous prime is 10485240121. The next prime is 10485240179. The reversal of 10485240138 is 83104258401.

10485240138 is a `hidden beast` number, since 1 + 0 + 485 + 2 + 40 + 138 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12662920 + ... + 12663747.

It is an arithmetic number, because the mean of its divisors is an integer number (987740052).

Almost surely, 2^10485240138 is an apocalyptic number.

10485240138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10485240138 is an abundant number, since it is smaller than the sum of its proper divisors (13220521110).

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

10485240138 is a wasteful number, since it uses less digits than its factorization.

10485240138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25326698 (or 25326695 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

Adding to 10485240138 its reverse (83104258401), we get a palindrome (93589498539).

The spelling of 10485240138 in words is "ten billion, four hundred eighty-five million, two hundred forty thousand, one hundred thirty-eight".