126744036633 has 20 divisors (see below), whose sum is σ = 189770997108. Its totient is φ = 84300860160.

The previous prime is 126744036593. The next prime is 126744036637. The reversal of 126744036633 is 336630447621.

126744036633 is a `hidden beast` number, since 1 + 2 + 6 + 7 + 4 + 4 + 0 + 3 + 6 + 633 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 80719628544 + 46024408089 = 284112^2 + 214533^2 .

It is not a de Polignac number, because 126744036633 - 2⁶ = 126744036569 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (126744036637) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1771788 + ... + 1841933.

Almost surely, 2^126744036633 is an apocalyptic number.

It is an amenable number.

126744036633 is a deficient number, since it is larger than the sum of its proper divisors (63026960475).

126744036633 is an equidigital number, since it uses as much as digits as its factorization.

126744036633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614166 (or 3614157 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 45.

The spelling of 126744036633 in words is "one hundred twenty-six billion, seven hundred forty-four million, thirty-six thousand, six hundred thirty-three".