1425631016279 has 2 divisors, whose sum is σ = 1425631016280. Its totient is φ = 1425631016278.

The previous prime is 1425631016273. The next prime is 1425631016401. The reversal of 1425631016279 is 9726101365241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1425631016279 - 2²⁰ = 1425629967703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425631016273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712815508139 + 712815508140.

It is an arithmetic number, because the mean of its divisors is an integer number (712815508140).

Almost surely, 2^{1425631016279} is an apocalyptic number.

1425631016279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425631016279 is an equidigital number, since it uses as much as digits as its factorization.

1425631016279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 1425631016279 in words is "one trillion, four hundred twenty-five billion, six hundred thirty-one million, sixteen thousand, two hundred seventy-nine".