20437427741 has 4 divisors (see below), whose sum is σ = 20438491584. Its totient is φ = 20436363900.

The previous prime is 20437427737. The next prime is 20437427797. The reversal of 20437427741 is 14772473402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20437427741 - 2² = 20437427737 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20437427641) 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, 502565 + ... + 541706.

It is an arithmetic number, because the mean of its divisors is an integer number (5109622896).

Almost surely, 2^20437427741 is an apocalyptic number.

It is an amenable number.

20437427741 is a deficient number, since it is larger than the sum of its proper divisors (1063843).

20437427741 is a wasteful number, since it uses less digits than its factorization.

20437427741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063842.

The product of its (nonzero) digits is 263424, while the sum is 41.

The spelling of 20437427741 in words is "twenty billion, four hundred thirty-seven million, four hundred twenty-seven thousand, seven hundred forty-one".