10640251250 has 20 divisors (see below), whose sum is σ = 19944089286. Its totient is φ = 4256100000.

The previous prime is 10640251247. The next prime is 10640251309. The reversal of 10640251250 is 5215204601.

It can be written as a sum of positive squares in 5 ways, for example, as 193571569 + 10446679681 = 13913^2 + 102209^2 .

It is a super-2 number, since 2×10640251250² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4254851 + ... + 4257350.

Almost surely, 2^10640251250 is an apocalyptic number.

10640251250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10640251250 is a deficient number, since it is larger than the sum of its proper divisors (9303838036).

10640251250 is an frugal number, since it uses more digits than its factorization.

10640251250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512223 (or 8512208 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 10640251250 its reverse (5215204601), we get a palindrome (15855455851).

The spelling of 10640251250 in words is "ten billion, six hundred forty million, two hundred fifty-one thousand, two hundred fifty".