126535687922 has 18 divisors (see below), whose sum is σ = 220798008333. Its totient is φ = 54228071352.

The previous prime is 126535687897. The next prime is 126535687933. The reversal of 126535687922 is 229786535621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120581868001 + 5953819921 = 347249^2 + 77161^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=251531.

It is a super-2 number, since 2×126535687922² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3503468 + ... + 3539400.

Almost surely, 2^126535687922 is an apocalyptic number.

126535687922 is a deficient number, since it is larger than the sum of its proper divisors (94262320411).

126535687922 is an frugal number, since it uses more digits than its factorization.

126535687922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71882 (or 35942 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 56.

The spelling of 126535687922 in words is "one hundred twenty-six billion, five hundred thirty-five million, six hundred eighty-seven thousand, nine hundred twenty-two".