12537235728984 has 64 divisors (see below), whose sum is σ = 33322923590400. Its totient is φ = 3921957243776.

The previous prime is 12537235728959. The next prime is 12537235728989. The reversal of 12537235728984 is 48982753273521.

It is a happy number.

It is a super-2 number, since 2×12537235728984² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12537235728989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214238514 + ... + 214297025.

It is an arithmetic number, because the mean of its divisors is an integer number (520670681100).

Almost surely, 2^{12537235728984} is an apocalyptic number.

It is an amenable number.

12537235728984 is an abundant number, since it is smaller than the sum of its proper divisors (20785687861416).

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

12537235728984 is a wasteful number, since it uses less digits than its factorization.

12537235728984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428535624 (or 428535620 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 66.

The spelling of 12537235728984 in words is "twelve trillion, five hundred thirty-seven billion, two hundred thirty-five million, seven hundred twenty-eight thousand, nine hundred eighty-four".