20346522986 has 4 divisors (see below), whose sum is σ = 30519784482. Its totient is φ = 10173261492.

The previous prime is 20346522971. The next prime is 20346522991. The reversal of 20346522986 is 68922564302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13410798025 + 6935724961 = 115805^2 + 83281^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20346522986.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5086630745 + ... + 5086630748.

Almost surely, 2^20346522986 is an apocalyptic number.

20346522986 is a deficient number, since it is larger than the sum of its proper divisors (10173261496).

20346522986 is a wasteful number, since it uses less digits than its factorization.

20346522986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10173261495.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 20346522986 in words is "twenty billion, three hundred forty-six million, five hundred twenty-two thousand, nine hundred eighty-six".