125351447508 has 192 divisors, whose sum is σ = 377188922880. Its totient is φ = 35261485056.

The previous prime is 125351447497. The next prime is 125351447513. The reversal of 125351447508 is 805744153521.

125351447508 is a `hidden beast` number, since 1 + 2 + 53 + 51 + 4 + 47 + 508 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14442066 + ... + 14450742.

It is an arithmetic number, because the mean of its divisors is an integer number (1964525640).

Almost surely, 2^125351447508 is an apocalyptic number.

125351447508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125351447508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188594461440).

125351447508 is an abundant number, since it is smaller than the sum of its proper divisors (251837475372).

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

125351447508 is a wasteful number, since it uses less digits than its factorization.

125351447508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8991 (or 8983 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 125351447508 in words is "one hundred twenty-five billion, three hundred fifty-one million, four hundred forty-seven thousand, five hundred eight".