20775280086523 has 8 divisors (see below), whose sum is σ = 21127474902960. Its totient is φ = 20423087651040.

The previous prime is 20775280086521. The next prime is 20775280086581. The reversal of 20775280086523 is 32568008257702.

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

It is a cyclic number.

It is not a de Polignac number, because 20775280086523 - 2¹ = 20775280086521 is a prime.

It is a super-2 number, since 2×20775280086523² (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 (20775280086521) 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, 32060593 + ... + 32702173.

It is an arithmetic number, because the mean of its divisors is an integer number (2640934362870).

Almost surely, 2^{20775280086523} is an apocalyptic number.

20775280086523 is a deficient number, since it is larger than the sum of its proper divisors (352194816437).

20775280086523 is an equidigital number, since it uses as much as digits as its factorization.

20775280086523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190477.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 20775280086523 in words is "twenty trillion, seven hundred seventy-five billion, two hundred eighty million, eighty-six thousand, five hundred twenty-three".