125271971478 has 48 divisors (see below), whose sum is σ = 282748752000. Its totient is φ = 40039557120.

The previous prime is 125271971443. The next prime is 125271971491. The reversal of 125271971478 is 874179172521.

125271971478 is a `hidden beast` number, since 1 + 2 + 527 + 1 + 9 + 71 + 47 + 8 = 666.

125271971478 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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 in 23 ways as a sum of consecutive naturals, for example, 969003 + ... + 1090646.

It is an arithmetic number, because the mean of its divisors is an integer number (5890599000).

Almost surely, 2^125271971478 is an apocalyptic number.

125271971478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

125271971478 is an abundant number, since it is smaller than the sum of its proper divisors (157476780522).

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

125271971478 is a wasteful number, since it uses less digits than its factorization.

125271971478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059797 (or 2059794 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 54.

The spelling of 125271971478 in words is "one hundred twenty-five billion, two hundred seventy-one million, nine hundred seventy-one thousand, four hundred seventy-eight".