125806462047 has 18 divisors (see below), whose sum is σ = 207685156328. Its totient is φ = 71887798152.

The previous prime is 125806462031. The next prime is 125806462069. The reversal of 125806462047 is 740264608521.

125806462047 is a `hidden beast` number, since 1 + 2 + 580 + 6 + 4 + 6 + 20 + 47 = 666.

It is not a de Polignac number, because 125806462047 - 2⁴ = 125806462031 is a prime.

It is a super-3 number, since 3×125806462047³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125806461993 and 125806462011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125806467047) by changing a digit.

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 in 17 ways as a sum of consecutive naturals, for example, 2792938 + ... + 2837624.

Almost surely, 2^125806462047 is an apocalyptic number.

125806462047 is a deficient number, since it is larger than the sum of its proper divisors (81878694281).

125806462047 is an frugal number, since it uses more digits than its factorization.

125806462047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89387 (or 44697 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 125806462047 in words is "one hundred twenty-five billion, eight hundred six million, four hundred sixty-two thousand, forty-seven".