11142446426 has 8 divisors (see below), whose sum is σ = 17121320244. Its totient is φ = 5435339680.

The previous prime is 11142446401. The next prime is 11142446429. The reversal of 11142446426 is 62464424111.

It can be written as a sum of positive squares in 2 ways, for example, as 7327531201 + 3814915225 = 85601^2 + 61765^2 .

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

It is a super-2 number, since 2×11142446426² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11142446429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67941665 + ... + 67941828.

Almost surely, 2^11142446426 is an apocalyptic number.

11142446426 is a deficient number, since it is larger than the sum of its proper divisors (5978873818).

11142446426 is a wasteful number, since it uses less digits than its factorization.

11142446426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135883536.

The product of its digits is 36864, while the sum is 35.

The spelling of 11142446426 in words is "eleven billion, one hundred forty-two million, four hundred forty-six thousand, four hundred twenty-six".