20034315547 has 2 divisors, whose sum is σ = 20034315548. Its totient is φ = 20034315546.

The previous prime is 20034315529. The next prime is 20034315607. The reversal of 20034315547 is 74551343002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20034315547 - 2⁷ = 20034315419 is a prime.

It is not a weakly prime, because it can be changed into another prime (20034315517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017157773 + 10017157774.

It is an arithmetic number, because the mean of its divisors is an integer number (10017157774).

Almost surely, 2^20034315547 is an apocalyptic number.

20034315547 is a deficient number, since it is larger than the sum of its proper divisors (1).

20034315547 is an equidigital number, since it uses as much as digits as its factorization.

20034315547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 34.

Adding to 20034315547 its reverse (74551343002), we get a palindrome (94585658549).

The spelling of 20034315547 in words is "twenty billion, thirty-four million, three hundred fifteen thousand, five hundred forty-seven".