125828449193 has 4 divisors (see below), whose sum is σ = 126086824320. Its totient is φ = 125570074068.

The previous prime is 125828449163. The next prime is 125828449217. The reversal of 125828449193 is 391944828521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 391944828521 = 232549 ⋅1685429.

It is a cyclic number.

It is not a de Polignac number, because 125828449193 - 2⁸ = 125828448937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125828449163) 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, 129186833 + ... + 129187806.

It is an arithmetic number, because the mean of its divisors is an integer number (31521706080).

Almost surely, 2^125828449193 is an apocalyptic number.

It is an amenable number.

125828449193 is a deficient number, since it is larger than the sum of its proper divisors (258375127).

125828449193 is an equidigital number, since it uses as much as digits as its factorization.

125828449193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258375126.

The product of its digits is 4976640, while the sum is 56.

The spelling of 125828449193 in words is "one hundred twenty-five billion, eight hundred twenty-eight million, four hundred forty-nine thousand, one hundred ninety-three".