126575325324899 has 32 divisors (see below), whose sum is σ = 138691701308160. Its totient is φ = 114561820454400.

The previous prime is 126575325324893. The next prime is 126575325324941. The reversal of 126575325324899 is 998423523575621.

It is a Cunningham number, because it is equal to 11250570²-1.

It is a de Polignac number, because none of the positive numbers 2^k-126575325324899 is a prime.

It is a super-3 number, since 3×126575325324899³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (126575325324893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7234107119 + ... + 7234124615.

It is an arithmetic number, because the mean of its divisors is an integer number (4334115665880).

Almost surely, 2^{126575325324899} is an apocalyptic number.

126575325324899 is a deficient number, since it is larger than the sum of its proper divisors (12116375983261).

126575325324899 is a wasteful number, since it uses less digits than its factorization.

126575325324899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21011.

The product of its digits is 979776000, while the sum is 71.

The spelling of 126575325324899 in words is "one hundred twenty-six trillion, five hundred seventy-five billion, three hundred twenty-five million, three hundred twenty-four thousand, eight hundred ninety-nine".