125644042235 has 32 divisors (see below), whose sum is σ = 162155202048. Its totient is φ = 93223975680.

The previous prime is 125644042231. The next prime is 125644042241. The reversal of 125644042235 is 532240446521.

It is not a de Polignac number, because 125644042235 - 2² = 125644042231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125644042231) 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, 686804 + ... + 850286.

It is an arithmetic number, because the mean of its divisors is an integer number (5067350064).

Almost surely, 2^125644042235 is an apocalyptic number.

125644042235 is a deficient number, since it is larger than the sum of its proper divisors (36511159813).

125644042235 is a wasteful number, since it uses less digits than its factorization.

125644042235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163715.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 125644042235 its reverse (532240446521), we get a palindrome (657884488756).

The spelling of 125644042235 in words is "one hundred twenty-five billion, six hundred forty-four million, forty-two thousand, two hundred thirty-five".