507440478893 has 2 divisors, whose sum is σ = 507440478894. Its totient is φ = 507440478892.

The previous prime is 507440478889. The next prime is 507440478911. The reversal of 507440478893 is 398874044705.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494915064004 + 12525414889 = 703502^2 + 111917^2 .

It is a cyclic number.

It is not a de Polignac number, because 507440478893 - 2² = 507440478889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (507440472893) 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, 253720239446 + 253720239447.

It is an arithmetic number, because the mean of its divisors is an integer number (253720239447).

Almost surely, 2^507440478893 is an apocalyptic number.

It is an amenable number.

507440478893 is a deficient number, since it is larger than the sum of its proper divisors (1).

507440478893 is an equidigital number, since it uses as much as digits as its factorization.

507440478893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27095040, while the sum is 59.

The spelling of 507440478893 in words is "five hundred seven billion, four hundred forty million, four hundred seventy-eight thousand, eight hundred ninety-three".