262117987220 has 54 divisors (see below), whose sum is σ = 553916936202. Its totient is φ = 104190531872.

The previous prime is 262117987189. The next prime is 262117987247. The reversal of 262117987220 is 22789711262.

262117987220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 209694389776 + 52423597444 = 457924^2 + 228962^2 .

It is a super-3 number, since 3×262117987220³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 547218941 + ... + 547219419.

Almost surely, 2^262117987220 is an apocalyptic number.

262117987220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

262117987220 is an abundant number, since it is smaller than the sum of its proper divisors (291798948982).

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

262117987220 is an frugal number, since it uses more digits than its factorization.

262117987220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 262117987220 in words is "two hundred sixty-two billion, one hundred seventeen million, nine hundred eighty-seven thousand, two hundred twenty".