20742299086 has 16 divisors (see below), whose sum is σ = 32022830736. Its totient is φ = 10069223616.

The previous prime is 20742299041. The next prime is 20742299101. The reversal of 20742299086 is 68099224702.

20742299086 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265551 + ... + 334666.

It is an arithmetic number, because the mean of its divisors is an integer number (2001426921).

Almost surely, 2^20742299086 is an apocalyptic number.

20742299086 is a deficient number, since it is larger than the sum of its proper divisors (11280531650).

20742299086 is a wasteful number, since it uses less digits than its factorization.

20742299086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600723.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 20742299086 in words is "twenty billion, seven hundred forty-two million, two hundred ninety-nine thousand, eighty-six".