12537840550 has 24 divisors (see below), whose sum is σ = 23323569696. Its totient is φ = 5014451040.

The previous prime is 12537840503. The next prime is 12537840563. The reversal of 12537840550 is 5504873521.

It is a congruent number.

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, 518019 + ... + 541681.

It is an arithmetic number, because the mean of its divisors is an integer number (971815404).

Almost surely, 2^12537840550 is an apocalyptic number.

12537840550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12537840550 is a deficient number, since it is larger than the sum of its proper divisors (10785729146).

12537840550 is a wasteful number, since it uses less digits than its factorization.

12537840550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34272 (or 34267 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 12537840550 in words is "twelve billion, five hundred thirty-seven million, eight hundred forty thousand, five hundred fifty".