10217075780 has 12 divisors (see below), whose sum is σ = 21455859180. Its totient is φ = 4086830304.

The previous prime is 10217075773. The next prime is 10217075783. The reversal of 10217075780 is 8757071201.

It can be written as a sum of positive squares in 2 ways, for example, as 7621988416 + 2595087364 = 87304^2 + 50942^2 .

It is not an unprimeable number, because it can be changed into a prime (10217075783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255426875 + ... + 255426914.

It is an arithmetic number, because the mean of its divisors is an integer number (1787988265).

Almost surely, 2^10217075780 is an apocalyptic number.

10217075780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10217075780 is an abundant number, since it is smaller than the sum of its proper divisors (11238783400).

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

10217075780 is a wasteful number, since it uses less digits than its factorization.

10217075780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510853798 (or 510853796 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 38.

The spelling of 10217075780 in words is "ten billion, two hundred seventeen million, seventy-five thousand, seven hundred eighty".