125869102420 has 24 divisors (see below), whose sum is σ = 265459567464. Its totient is φ = 50131554816.

The previous prime is 125869102417. The next prime is 125869102427. The reversal of 125869102420 is 24201968521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17972619844 + 107896482576 = 134062^2 + 328476^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125869102427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13500609 + ... + 13509928.

It is an arithmetic number, because the mean of its divisors is an integer number (11060815311).

Almost surely, 2^125869102420 is an apocalyptic number.

125869102420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125869102420 is an abundant number, since it is smaller than the sum of its proper divisors (139590465044).

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

125869102420 is a wasteful number, since it uses less digits than its factorization.

125869102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27010779 (or 27010777 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 125869102420 in words is "one hundred twenty-five billion, eight hundred sixty-nine million, one hundred two thousand, four hundred twenty".