68881263250 has 16 divisors (see below), whose sum is σ = 128945725272. Its totient is φ = 27552505200.

The previous prime is 68881263233. The next prime is 68881263263. The reversal of 68881263250 is 5236218886.

It can be written as a sum of positive squares in 4 ways, for example, as 20194399449 + 48686863801 = 142107^2 + 220651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68881263194 and 68881263203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137762277 + ... + 137762776.

Almost surely, 2^68881263250 is an apocalyptic number.

68881263250 is a deficient number, since it is larger than the sum of its proper divisors (60064462022).

68881263250 is a wasteful number, since it uses less digits than its factorization.

68881263250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275525070 (or 275525060 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 68881263250 in words is "sixty-eight billion, eight hundred eighty-one million, two hundred sixty-three thousand, two hundred fifty".