20479347141 has 16 divisors (see below), whose sum is σ = 30480890880. Its totient is φ = 12123079920.

The previous prime is 20479347127. The next prime is 20479347157. The reversal of 20479347141 is 14174397402.

It is not a de Polignac number, because 20479347141 - 2¹⁹ = 20478822853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20479347093 and 20479347102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20479347191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7214701 + ... + 7217538.

It is an arithmetic number, because the mean of its divisors is an integer number (1905055680).

Almost surely, 2^20479347141 is an apocalyptic number.

It is an amenable number.

20479347141 is a deficient number, since it is larger than the sum of its proper divisors (10001543739).

20479347141 is a wasteful number, since it uses less digits than its factorization.

20479347141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14432296.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 20479347141 in words is "twenty billion, four hundred seventy-nine million, three hundred forty-seven thousand, one hundred forty-one".