202650327889 has 45 divisors (see below), whose sum is σ = 226810989483. Its totient is φ = 181053566064.

The previous prime is 202650327877. The next prime is 202650327899. The reversal of 202650327889 is 988723056202.

The square root of 202650327889 is 450167.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 106264916289 + 96385411600 = 325983^2 + 310460^2 .

It is not a de Polignac number, because 202650327889 - 2¹⁵ = 202650295121 is a prime.

It is a super-2 number, since 2×202650327889² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202650327899) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4712798302 + ... + 4712798344.

Almost surely, 2^202650327889 is an apocalyptic number.

202650327889 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

202650327889 is the 450167-th square number.

202650327889 is the 225084-th centered octagonal number.

It is an amenable number.

202650327889 is a deficient number, since it is larger than the sum of its proper divisors (24160661594).

202650327889 is an frugal number, since it uses more digits than its factorization.

202650327889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 202650327889 in words is "two hundred two billion, six hundred fifty million, three hundred twenty-seven thousand, eight hundred eighty-nine".