125866222619 has 8 divisors (see below), whose sum is σ = 126703200000. Its totient is φ = 125031290472.

The previous prime is 125866222607. The next prime is 125866222631. The reversal of 125866222619 is 916222668521.

It is an interprime number because it is at equal distance from previous prime (125866222607) and next prime (125866222631).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125866222619 is a prime.

It is a super-2 number, since 2×125866222619² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125866228619) 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, 387719 + ... + 634080.

It is an arithmetic number, because the mean of its divisors is an integer number (15837900000).

Almost surely, 2^125866222619 is an apocalyptic number.

125866222619 is a deficient number, since it is larger than the sum of its proper divisors (836977381).

125866222619 is a wasteful number, since it uses less digits than its factorization.

125866222619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022617.

The product of its digits is 1244160, while the sum is 50.

The spelling of 125866222619 in words is "one hundred twenty-five billion, eight hundred sixty-six million, two hundred twenty-two thousand, six hundred nineteen".