190542728020 has 24 divisors (see below), whose sum is σ = 410954317704. Its totient is φ = 74157169536.

The previous prime is 190542728011. The next prime is 190542728023. The reversal of 190542728020 is 20827245091.

190542728020 is digitally balanced in base 3, 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 4 ways, for example, as 82014649924 + 108528078096 = 286382^2 + 329436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190542728023) 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, 128744347 + ... + 128745826.

It is an arithmetic number, because the mean of its divisors is an integer number (17123096571).

Almost surely, 2^190542728020 is an apocalyptic number.

190542728020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190542728020 is an abundant number, since it is smaller than the sum of its proper divisors (220411589684).

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

190542728020 is a wasteful number, since it uses less digits than its factorization.

190542728020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257490219 (or 257490217 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 190542728020 in words is "one hundred ninety billion, five hundred forty-two million, seven hundred twenty-eight thousand, twenty".