68127551425 has 24 divisors (see below), whose sum is σ = 89517156696. Its totient is φ = 51256074240.

The previous prime is 68127551413. The next prime is 68127551467. The reversal of 68127551425 is 52415572186.

It can be written as a sum of positive squares in 12 ways, for example, as 396447921 + 67731103504 = 19911^2 + 260252^2 .

It is a de Polignac number, because none of the positive numbers 2^k-68127551425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489429 + ... + 613021.

It is an arithmetic number, because the mean of its divisors is an integer number (3729881529).

Almost surely, 2^68127551425 is an apocalyptic number.

It is an amenable number.

68127551425 is a deficient number, since it is larger than the sum of its proper divisors (21389605271).

68127551425 is a wasteful number, since it uses less digits than its factorization.

68127551425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124917 (or 124912 counting only the distinct ones).

The product of its digits is 672000, while the sum is 46.

The spelling of 68127551425 in words is "sixty-eight billion, one hundred twenty-seven million, five hundred fifty-one thousand, four hundred twenty-five".