189935009916 has 24 divisors (see below), whose sum is σ = 443505928320. Its totient is φ = 63265350192.

The previous prime is 189935009909. The next prime is 189935009917. The reversal of 189935009916 is 619900539981.

It is a super-3 number, since 3×189935009916³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189935009916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189935009917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5772886 + ... + 5805693.

It is an arithmetic number, because the mean of its divisors is an integer number (18479413680).

Almost surely, 2^189935009916 is an apocalyptic number.

It is an amenable number.

189935009916 is an abundant number, since it is smaller than the sum of its proper divisors (253570918404).

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

189935009916 is a wasteful number, since it uses less digits than its factorization.

189935009916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11579953 (or 11579951 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 60.

The spelling of 189935009916 in words is "one hundred eighty-nine billion, nine hundred thirty-five million, nine thousand, nine hundred sixteen".