42728520090 has 32 divisors (see below), whose sum is σ = 102564737856. Its totient is φ = 11392462080.

The previous prime is 42728520073. The next prime is 42728520091. The reversal of 42728520090 is 9002582724.

It is not an unprimeable number, because it can be changed into a prime (42728520091) 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, 84549 + ... + 304311.

It is an arithmetic number, because the mean of its divisors is an integer number (3205148058).

Almost surely, 2^42728520090 is an apocalyptic number.

42728520090 is an abundant number, since it is smaller than the sum of its proper divisors (59836217766).

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

42728520090 is a wasteful number, since it uses less digits than its factorization.

42728520090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226254.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 42728520090 in words is "forty-two billion, seven hundred twenty-eight million, five hundred twenty thousand, ninety".