125728857498 has 16 divisors (see below), whose sum is σ = 252084796416. Its totient is φ = 41805105600.

The previous prime is 125728857493. The next prime is 125728857503. The reversal of 125728857498 is 894758827521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125728857493) and next prime (125728857503).

It is not an unprimeable number, because it can be changed into a prime (125728857493) 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, 26125786 + ... + 26130597.

It is an arithmetic number, because the mean of its divisors is an integer number (15755299776).

Almost surely, 2^125728857498 is an apocalyptic number.

125728857498 is an abundant number, since it is smaller than the sum of its proper divisors (126355938918).

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

125728857498 is a wasteful number, since it uses less digits than its factorization.

125728857498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52256789.

The product of its digits is 90316800, while the sum is 66.

The spelling of 125728857498 in words is "one hundred twenty-five billion, seven hundred twenty-eight million, eight hundred fifty-seven thousand, four hundred ninety-eight".