202550117627989 has 4 divisors (see below), whose sum is σ = 202550232682656. Its totient is φ = 202550002573324.

The previous prime is 202550117627987. The next prime is 202550117628059. The reversal of 202550117627989 is 989726711055202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202550117627989 - 2¹ = 202550117627987 is a prime.

It is a super-2 number, since 2×202550117627989² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202550117627989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202550117627987) 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, 54844939 + ... + 58421464.

It is an arithmetic number, because the mean of its divisors is an integer number (50637558170664).

Almost surely, 2^{202550117627989} is an apocalyptic number.

It is an amenable number.

202550117627989 is a deficient number, since it is larger than the sum of its proper divisors (115054667).

202550117627989 is a wasteful number, since it uses less digits than its factorization.

202550117627989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115054666.

The product of its (nonzero) digits is 38102400, while the sum is 64.

The spelling of 202550117627989 in words is "two hundred two trillion, five hundred fifty billion, one hundred seventeen million, six hundred twenty-seven thousand, nine hundred eighty-nine".