125681668286 has 4 divisors (see below), whose sum is σ = 188522502432. Its totient is φ = 62840834142.

The previous prime is 125681668271. The next prime is 125681668291. The reversal of 125681668286 is 682866186521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31420417070 + ... + 31420417073.

It is an arithmetic number, because the mean of its divisors is an integer number (47130625608).

Almost surely, 2^125681668286 is an apocalyptic number.

125681668286 is a deficient number, since it is larger than the sum of its proper divisors (62840834146).

125681668286 is an equidigital number, since it uses as much as digits as its factorization.

125681668286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62840834145.

The product of its digits is 13271040, while the sum is 59.

The spelling of 125681668286 in words is "one hundred twenty-five billion, six hundred eighty-one million, six hundred sixty-eight thousand, two hundred eighty-six".