20107463641 has 4 divisors (see below), whose sum is σ = 20165078500. Its totient is φ = 20049848784.

The previous prime is 20107463639. The next prime is 20107463687. The reversal of 20107463641 is 14636470102.

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 9615763600 + 10491700041 = 98060^2 + 102429^2 .

It is a cyclic number.

It is not a de Polignac number, because 20107463641 - 2¹ = 20107463639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20107463597 and 20107463606.

It is not an unprimeable number, because it can be changed into a prime (20107467641) 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, 28806906 + ... + 28807603.

It is an arithmetic number, because the mean of its divisors is an integer number (5041269625).

Almost surely, 2^20107463641 is an apocalyptic number.

It is an amenable number.

20107463641 is a deficient number, since it is larger than the sum of its proper divisors (57614859).

20107463641 is an equidigital number, since it uses as much as digits as its factorization.

20107463641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57614858.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 20107463641 in words is "twenty billion, one hundred seven million, four hundred sixty-three thousand, six hundred forty-one".