126181543433 has 24 divisors (see below), whose sum is σ = 140532013440. Its totient is φ = 113193194400.

The previous prime is 126181543417. The next prime is 126181543447. The reversal of 126181543433 is 334345181621.

It is not a de Polignac number, because 126181543433 - 2⁴ = 126181543417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126181543463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25586978 + ... + 25591908.

It is an arithmetic number, because the mean of its divisors is an integer number (5855500560).

Almost surely, 2^126181543433 is an apocalyptic number.

It is an amenable number.

126181543433 is a deficient number, since it is larger than the sum of its proper divisors (14350470007).

126181543433 is a wasteful number, since it uses less digits than its factorization.

126181543433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709 (or 7698 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The spelling of 126181543433 in words is "one hundred twenty-six billion, one hundred eighty-one million, five hundred forty-three thousand, four hundred thirty-three".