20452038931507 has 2 divisors, whose sum is σ = 20452038931508. Its totient is φ = 20452038931506.

The previous prime is 20452038931463. The next prime is 20452038931529. The reversal of 20452038931507 is 70513983025402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20452038931507 is a prime.

It is not a weakly prime, because it can be changed into another prime (20452038991507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226019465753 + 10226019465754.

It is an arithmetic number, because the mean of its divisors is an integer number (10226019465754).

Almost surely, 2^{20452038931507} is an apocalyptic number.

20452038931507 is a deficient number, since it is larger than the sum of its proper divisors (1).

20452038931507 is an equidigital number, since it uses as much as digits as its factorization.

20452038931507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 20452038931507 in words is "twenty trillion, four hundred fifty-two billion, thirty-eight million, nine hundred thirty-one thousand, five hundred seven".