125319814544 has 10 divisors (see below), whose sum is σ = 242807140710. Its totient is φ = 62659907264.

The previous prime is 125319814507. The next prime is 125319814579. The reversal of 125319814544 is 445418913521.

It can be written as a sum of positive squares in only one way, i.e., 90084019600 + 35235794944 = 300140^2 + 187712^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3916244189 + ... + 3916244220.

It is an arithmetic number, because the mean of its divisors is an integer number (24280714071).

Almost surely, 2^125319814544 is an apocalyptic number.

It is an amenable number.

125319814544 is a deficient number, since it is larger than the sum of its proper divisors (117487326166).

125319814544 is an equidigital number, since it uses as much as digits as its factorization.

125319814544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832488417 (or 7832488411 counting only the distinct ones).

The product of its digits is 691200, while the sum is 47.

The spelling of 125319814544 in words is "one hundred twenty-five billion, three hundred nineteen million, eight hundred fourteen thousand, five hundred forty-four".