1422640444541 has 2 divisors, whose sum is σ = 1422640444542. Its totient is φ = 1422640444540.

The previous prime is 1422640444531. The next prime is 1422640444571. The reversal of 1422640444541 is 1454440462241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1016557980025 + 406082464516 = 1008245^2 + 637246^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422640444541 - 2³⁴ = 1405460575357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422640444531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711320222270 + 711320222271.

It is an arithmetic number, because the mean of its divisors is an integer number (711320222271).

Almost surely, 2^{1422640444541} is an apocalyptic number.

It is an amenable number.

1422640444541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422640444541 is an equidigital number, since it uses as much as digits as its factorization.

1422640444541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 491520, while the sum is 41.

The spelling of 1422640444541 in words is "one trillion, four hundred twenty-two billion, six hundred forty million, four hundred forty-four thousand, five hundred forty-one".