126423611801 has 8 divisors (see below), whose sum is σ = 129851056584. Its totient is φ = 122996724480.

The previous prime is 126423611789. The next prime is 126423611803. The reversal of 126423611801 is 108116324621.

It can be written as a sum of positive squares in 4 ways, for example, as 49459536025 + 76964075776 = 222395^2 + 277424^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126423611801 - 2⁶ = 126423611737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126423611803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342641 + ... + 608481.

It is an arithmetic number, because the mean of its divisors is an integer number (16231382073).

Almost surely, 2^126423611801 is an apocalyptic number.

It is an amenable number.

126423611801 is a deficient number, since it is larger than the sum of its proper divisors (3427444783).

126423611801 is a wasteful number, since it uses less digits than its factorization.

126423611801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278731.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 126423611801 in words is "one hundred twenty-six billion, four hundred twenty-three million, six hundred eleven thousand, eight hundred one".