20282240929521 has 8 divisors (see below), whose sum is σ = 27050650994080. Its totient is φ = 13517662408992.

The previous prime is 20282240929477. The next prime is 20282240929537. The reversal of 20282240929521 is 12592904228202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20282240929521 - 2¹³ = 20282240921329 is a prime.

It is a super-2 number, since 2×20282240929521² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20282240929121) 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, 957873655 + ... + 957894828.

It is an arithmetic number, because the mean of its divisors is an integer number (3381331374260).

Almost surely, 2^{20282240929521} is an apocalyptic number.

It is an amenable number.

20282240929521 is a deficient number, since it is larger than the sum of its proper divisors (6768410064559).

20282240929521 is a wasteful number, since it uses less digits than its factorization.

20282240929521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915772015.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 20282240929521 in words is "twenty trillion, two hundred eighty-two billion, two hundred forty million, nine hundred twenty-nine thousand, five hundred twenty-one".