12460021170138 has 48 divisors (see below), whose sum is σ = 28418379331680. Its totient is φ = 3934634532192.

The previous prime is 12460021170097. The next prime is 12460021170161. The reversal of 12460021170138 is 83107112006421.

12460021170138 is a `hidden beast` number, since 1 + 2 + 4 + 600 + 2 + 1 + 17 + 0 + 1 + 38 = 666.

It is a super-3 number, since 3×12460021170138³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12336745 + ... + 13308467.

It is an arithmetic number, because the mean of its divisors is an integer number (592049569410).

Almost surely, 2^{12460021170138} is an apocalyptic number.

12460021170138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12460021170138 is an abundant number, since it is smaller than the sum of its proper divisors (15958358161542).

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

12460021170138 is a wasteful number, since it uses less digits than its factorization.

12460021170138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009243 (or 1009240 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

Adding to 12460021170138 its reverse (83107112006421), we get a palindrome (95567133176559).

The spelling of 12460021170138 in words is "twelve trillion, four hundred sixty billion, twenty-one million, one hundred seventy thousand, one hundred thirty-eight".