20436768086 has 8 divisors (see below), whose sum is σ = 35034459600. Its totient is φ = 8758614888.

The previous prime is 20436768067. The next prime is 20436768103. The reversal of 20436768086 is 68086763402.

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

It is a super-2 number, since 2×20436768086² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729884561 + ... + 729884588.

It is an arithmetic number, because the mean of its divisors is an integer number (4379307450).

Almost surely, 2^20436768086 is an apocalyptic number.

20436768086 is a deficient number, since it is larger than the sum of its proper divisors (14597691514).

20436768086 is a wasteful number, since it uses less digits than its factorization.

20436768086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459769158.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 20436768086 in words is "twenty billion, four hundred thirty-six million, seven hundred sixty-eight thousand, eighty-six".