190990780421088 has 96 divisors (see below), whose sum is σ = 527741913565440. Its totient is φ = 60312394506240.

The previous prime is 190990780421087. The next prime is 190990780421117. The reversal of 190990780421088 is 880124087099091.

190990780421088 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190990780421083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277646848 + ... + 278333888.

It is an arithmetic number, because the mean of its divisors is an integer number (5497311599640).

Almost surely, 2^{190990780421088} is an apocalyptic number.

It is an amenable number.

190990780421088 is an abundant number, since it is smaller than the sum of its proper divisors (336751133144352).

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

190990780421088 is a wasteful number, since it uses less digits than its factorization.

190990780421088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839480 (or 839472 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 66.

The spelling of 190990780421088 in words is "one hundred ninety trillion, nine hundred ninety billion, seven hundred eighty million, four hundred twenty-one thousand, eighty-eight".