125271986746 has 4 divisors (see below), whose sum is σ = 187907980122. Its totient is φ = 62635993372.

The previous prime is 125271986689. The next prime is 125271986771. The reversal of 125271986746 is 647689172521.

125271986746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 647689172521 = 13877 ⋅46673573.

It can be written as a sum of positive squares in only one way, i.e., 96010121025 + 29261865721 = 309855^2 + 171061^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 31317996685 + ... + 31317996688.

Almost surely, 2^125271986746 is an apocalyptic number.

125271986746 is a deficient number, since it is larger than the sum of its proper divisors (62635993376).

125271986746 is an equidigital number, since it uses as much as digits as its factorization.

125271986746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62635993375.

The product of its digits is 10160640, while the sum is 58.

The spelling of 125271986746 in words is "one hundred twenty-five billion, two hundred seventy-one million, nine hundred eighty-six thousand, seven hundred forty-six".