20114543479 has 2 divisors, whose sum is σ = 20114543480. Its totient is φ = 20114543478.

The previous prime is 20114543377. The next prime is 20114543503. The reversal of 20114543479 is 97434541102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20114543479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20114549479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10057271739 + 10057271740.

It is an arithmetic number, because the mean of its divisors is an integer number (10057271740).

Almost surely, 2^20114543479 is an apocalyptic number.

20114543479 is a deficient number, since it is larger than the sum of its proper divisors (1).

20114543479 is an equidigital number, since it uses as much as digits as its factorization.

20114543479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 20114543479 in words is "twenty billion, one hundred fourteen million, five hundred forty-three thousand, four hundred seventy-nine".