125234722447278 has 16 divisors (see below), whose sum is σ = 250517919786240. Its totient is φ = 41736828333816.

The previous prime is 125234722447243. The next prime is 125234722447321. The reversal of 125234722447278 is 872744227432521.

It is a super-3 number, since 3×125234722447278³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2019753568 + ... + 2019815571.

It is an arithmetic number, because the mean of its divisors is an integer number (15657369986640).

Almost surely, 2^{125234722447278} is an apocalyptic number.

125234722447278 is an abundant number, since it is smaller than the sum of its proper divisors (125283197338962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125234722447278 is a wasteful number, since it uses less digits than its factorization.

125234722447278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039574311.

The product of its digits is 84295680, while the sum is 60.

Adding to 125234722447278 its reverse (872744227432521), we get a palindrome (997978949879799).

The spelling of 125234722447278 in words is "one hundred twenty-five trillion, two hundred thirty-four billion, seven hundred twenty-two million, four hundred forty-seven thousand, two hundred seventy-eight".