126889506895 has 8 divisors (see below), whose sum is σ = 155808511056. Its totient is φ = 99150870336.

The previous prime is 126889506893. The next prime is 126889506917. The reversal of 126889506895 is 598605988621.

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

It is a cyclic number.

It is not a de Polignac number, because 126889506895 - 2¹ = 126889506893 is a prime.

It is a super-2 number, since 2×126889506895² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126889506895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126889506893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295091662 + ... + 295092091.

It is an arithmetic number, because the mean of its divisors is an integer number (19476063882).

Almost surely, 2^126889506895 is an apocalyptic number.

126889506895 is a deficient number, since it is larger than the sum of its proper divisors (28919004161).

126889506895 is an equidigital number, since it uses as much as digits as its factorization.

126889506895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590183801.

The product of its (nonzero) digits is 74649600, while the sum is 67.

The spelling of 126889506895 in words is "one hundred twenty-six billion, eight hundred eighty-nine million, five hundred six thousand, eight hundred ninety-five".