20107056742 has 8 divisors (see below), whose sum is σ = 30975736176. Its totient is φ = 9781811352.

The previous prime is 20107056733. The next prime is 20107056763. The reversal of 20107056742 is 24765070102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20107056698 and 20107056707.

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 3 ways as a sum of consecutive naturals, for example, 135858418 + ... + 135858565.

It is an arithmetic number, because the mean of its divisors is an integer number (3871967022).

Almost surely, 2^20107056742 is an apocalyptic number.

20107056742 is a deficient number, since it is larger than the sum of its proper divisors (10868679434).

20107056742 is a wasteful number, since it uses less digits than its factorization.

20107056742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271717022.

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 20107056742 in words is "twenty billion, one hundred seven million, fifty-six thousand, seven hundred forty-two".