126435394942 has 32 divisors (see below), whose sum is σ = 194281390080. Its totient is φ = 61683504960.

The previous prime is 126435394931. The next prime is 126435394951. The reversal of 126435394942 is 249493534621.

It is a self number, because there is not a number n which added to its sum of digits gives 126435394942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78677103 + ... + 78678709.

It is an arithmetic number, because the mean of its divisors is an integer number (6071293440).

Almost surely, 2^126435394942 is an apocalyptic number.

126435394942 is a deficient number, since it is larger than the sum of its proper divisors (67845995138).

126435394942 is a wasteful number, since it uses less digits than its factorization.

126435394942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696.

The product of its digits is 5598720, while the sum is 52.

The spelling of 126435394942 in words is "one hundred twenty-six billion, four hundred thirty-five million, three hundred ninety-four thousand, nine hundred forty-two".