425434428487 has 2 divisors, whose sum is σ = 425434428488. Its totient is φ = 425434428486.

The previous prime is 425434428457. The next prime is 425434428493. The reversal of 425434428487 is 784824434524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425434428487 - 2²³ = 425426039879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425434428407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212717214243 + 212717214244.

It is an arithmetic number, because the mean of its divisors is an integer number (212717214244).

Almost surely, 2^425434428487 is an apocalyptic number.

425434428487 is a deficient number, since it is larger than the sum of its proper divisors (1).

425434428487 is an equidigital number, since it uses as much as digits as its factorization.

425434428487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27525120, while the sum is 55.

The spelling of 425434428487 in words is "four hundred twenty-five billion, four hundred thirty-four million, four hundred twenty-eight thousand, four hundred eighty-seven".