1000568781250 has 112 divisors (see below), whose sum is σ = 1917587173320. Its totient is φ = 391414400000.

The previous prime is 1000568781239. The next prime is 1000568781263. The reversal of 1000568781250 is 521878650001.

It can be written as a sum of positive squares in 28 ways, for example, as 919782656809 + 80786124441 = 959053^2 + 284229^2 .

It is a super-2 number, since 2×1000568781250² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1000568781197 and 1000568781206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 644280474 + ... + 644282026.

Almost surely, 2^{1000568781250} is an apocalyptic number.

1000568781250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000568781250 is a deficient number, since it is larger than the sum of its proper divisors (917018392070).

1000568781250 is an frugal number, since it uses more digits than its factorization.

1000568781250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 43.

The spelling of 1000568781250 in words is "one trillion, five hundred sixty-eight million, seven hundred eighty-one thousand, two hundred fifty".