126423555641 has 2 divisors, whose sum is σ = 126423555642. Its totient is φ = 126423555640.

The previous prime is 126423555619. The next prime is 126423555683. The reversal of 126423555641 is 146555324621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65165325625 + 61258230016 = 255275^2 + 247504^2 .

It is a cyclic number.

It is not a de Polignac number, because 126423555641 - 2¹⁰ = 126423554617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126423555592 and 126423555601.

It is not a weakly prime, because it can be changed into another prime (126423555941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63211777820 + 63211777821.

It is an arithmetic number, because the mean of its divisors is an integer number (63211777821).

Almost surely, 2^126423555641 is an apocalyptic number.

It is an amenable number.

126423555641 is a deficient number, since it is larger than the sum of its proper divisors (1).

126423555641 is an equidigital number, since it uses as much as digits as its factorization.

126423555641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864000, while the sum is 44.

The spelling of 126423555641 in words is "one hundred twenty-six billion, four hundred twenty-three million, five hundred fifty-five thousand, six hundred forty-one".