125612819857 has 8 divisors (see below), whose sum is σ = 148188396032. Its totient is φ = 104194965600.

The previous prime is 125612819837. The next prime is 125612819879. The reversal of 125612819857 is 758918216521.

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 125612819857 - 2⁷ = 125612819729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125612819798 and 125612819807.

It is not an unprimeable number, because it can be changed into a prime (125612819837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289430244 + ... + 289430677.

It is an arithmetic number, because the mean of its divisors is an integer number (18523549504).

Almost surely, 2^125612819857 is an apocalyptic number.

It is an amenable number.

125612819857 is a deficient number, since it is larger than the sum of its proper divisors (22575576175).

125612819857 is an equidigital number, since it uses as much as digits as its factorization.

125612819857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578860959.

The product of its digits is 2419200, while the sum is 55.

The spelling of 125612819857 in words is "one hundred twenty-five billion, six hundred twelve million, eight hundred nineteen thousand, eight hundred fifty-seven".