12537737153 has 4 divisors (see below), whose sum is σ = 12583000020. Its totient is φ = 12492474288.

The previous prime is 12537737117. The next prime is 12537737197. The reversal of 12537737153 is 35173773521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 789778609 + 11747958544 = 28103^2 + 108388^2 .

It is a cyclic number.

It is not a de Polignac number, because 12537737153 - 2²² = 12533542849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12537736153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22631018 + ... + 22631571.

It is an arithmetic number, because the mean of its divisors is an integer number (3145750005).

Almost surely, 2^12537737153 is an apocalyptic number.

It is an amenable number.

12537737153 is a deficient number, since it is larger than the sum of its proper divisors (45262867).

12537737153 is an equidigital number, since it uses as much as digits as its factorization.

12537737153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45262866.

The product of its digits is 463050, while the sum is 44.

The spelling of 12537737153 in words is "twelve billion, five hundred thirty-seven million, seven hundred thirty-seven thousand, one hundred fifty-three".