125868676433 has 4 divisors (see below), whose sum is σ = 125873591988. Its totient is φ = 125863760880.

The previous prime is 125868676361. The next prime is 125868676457. The reversal of 125868676433 is 334676868521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 334676868521 = 2333 ⋅143453437.

It can be written as a sum of positive squares in 2 ways, for example, as 69596771344 + 56271905089 = 263812^2 + 237217^2 .

It is a cyclic number.

It is not a de Polignac number, because 125868676433 - 2⁸ = 125868676177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125868678433) 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, 2419166 + ... + 2470647.

It is an arithmetic number, because the mean of its divisors is an integer number (31468397997).

Almost surely, 2^125868676433 is an apocalyptic number.

It is an amenable number.

125868676433 is a deficient number, since it is larger than the sum of its proper divisors (4915555).

125868676433 is an equidigital number, since it uses as much as digits as its factorization.

125868676433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915554.

The product of its digits is 34836480, while the sum is 59.

The spelling of 125868676433 in words is "one hundred twenty-five billion, eight hundred sixty-eight million, six hundred seventy-six thousand, four hundred thirty-three".