673428449527 has 2 divisors, whose sum is σ = 673428449528. Its totient is φ = 673428449526.

The previous prime is 673428449483. The next prime is 673428449531. The reversal of 673428449527 is 725944824376.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673428449527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673428449537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336714224763 + 336714224764.

It is an arithmetic number, because the mean of its divisors is an integer number (336714224764).

Almost surely, 2^673428449527 is an apocalyptic number.

673428449527 is a deficient number, since it is larger than the sum of its proper divisors (1).

673428449527 is an equidigital number, since it uses as much as digits as its factorization.

673428449527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81285120, while the sum is 61.

The spelling of 673428449527 in words is "six hundred seventy-three billion, four hundred twenty-eight million, four hundred forty-nine thousand, five hundred twenty-seven".