20137245427 has 8 divisors (see below), whose sum is σ = 21783515264. Its totient is φ = 18504868608.

The previous prime is 20137245409. The next prime is 20137245487. The reversal of 20137245427 is 72454273102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20137245427 - 2²⁷ = 20003027699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20137245487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3470238 + ... + 3476035.

It is an arithmetic number, because the mean of its divisors is an integer number (2722939408).

Almost surely, 2^20137245427 is an apocalyptic number.

20137245427 is a deficient number, since it is larger than the sum of its proper divisors (1646269837).

20137245427 is a wasteful number, since it uses less digits than its factorization.

20137245427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6946509.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 20137245427 in words is "twenty billion, one hundred thirty-seven million, two hundred forty-five thousand, four hundred twenty-seven".