125278130958208 has 64 divisors (see below), whose sum is σ = 251506937682000. Its totient is φ = 62154913300480.

The previous prime is 125278130958203. The next prime is 125278130958217. The reversal of 125278130958208 is 802859031872521.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×125278130958208² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125278130958203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176195478 + ... + 176905066.

Almost surely, 2^{125278130958208} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125278130958208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125753468841000).

125278130958208 is an abundant number, since it is smaller than the sum of its proper divisors (126228806723792).

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

125278130958208 is a wasteful number, since it uses less digits than its factorization.

125278130958208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720263 (or 720251 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 61.

The spelling of 125278130958208 in words is "one hundred twenty-five trillion, two hundred seventy-eight billion, one hundred thirty million, nine hundred fifty-eight thousand, two hundred eight".