20962100437 has 4 divisors (see below), whose sum is σ = 21357611820. Its totient is φ = 20566589056.

The previous prime is 20962100431. The next prime is 20962100507. The reversal of 20962100437 is 73400126902.

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 18376784721 + 2585315716 = 135561^2 + 50846^2 .

It is a cyclic number.

It is not a de Polignac number, because 20962100437 - 2³ = 20962100429 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 (20962100431) 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, 197755612 + ... + 197755717.

It is an arithmetic number, because the mean of its divisors is an integer number (5339402955).

Almost surely, 2^20962100437 is an apocalyptic number.

It is an amenable number.

20962100437 is a deficient number, since it is larger than the sum of its proper divisors (395511383).

20962100437 is an equidigital number, since it uses as much as digits as its factorization.

20962100437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395511382.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 20962100437 in words is "twenty billion, nine hundred sixty-two million, one hundred thousand, four hundred thirty-seven".