125745717870 has 48 divisors (see below), whose sum is σ = 339047719920. Its totient is φ = 33532190784.

The previous prime is 125745717857. The next prime is 125745717883. The reversal of 125745717870 is 78717547521.

125745717870 is a `hidden beast` number, since 1 + 2 + 57 + 457 + 1 + 78 + 70 = 666.

It is an interprime number because it is at equal distance from previous prime (125745717857) and next prime (125745717883).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 25871175 + ... + 25876034.

It is an arithmetic number, because the mean of its divisors is an integer number (7063494165).

Almost surely, 2^125745717870 is an apocalyptic number.

125745717870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125745717870 is an abundant number, since it is smaller than the sum of its proper divisors (213302002050).

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

125745717870 is an equidigital number, since it uses as much as digits as its factorization.

125745717870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51747231 (or 51747219 counting only the distinct ones).

The product of its (nonzero) digits is 3841600, while the sum is 54.

The spelling of 125745717870 in words is "one hundred twenty-five billion, seven hundred forty-five million, seven hundred seventeen thousand, eight hundred seventy".