125273050646 has 4 divisors (see below), whose sum is σ = 187909575972. Its totient is φ = 62636525322.

The previous prime is 125273050613. The next prime is 125273050703. The reversal of 125273050646 is 646050372521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646050372521 = 673 ⋅959955977.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31318262660 + ... + 31318262663.

It is an arithmetic number, because the mean of its divisors is an integer number (46977393993).

Almost surely, 2^125273050646 is an apocalyptic number.

125273050646 is a deficient number, since it is larger than the sum of its proper divisors (62636525326).

125273050646 is an equidigital number, since it uses as much as digits as its factorization.

125273050646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62636525325.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 125273050646 in words is "one hundred twenty-five billion, two hundred seventy-three million, fifty thousand, six hundred forty-six".