20634714290 has 8 divisors (see below), whose sum is σ = 37142485740. Its totient is φ = 8253885712.

The previous prime is 20634714281. The next prime is 20634714301. The reversal of 20634714290 is 9241743602.

It can be written as a sum of positive squares in 2 ways, for example, as 18625971529 + 2008742761 = 136477^2 + 44819^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031735705 + ... + 1031735724.

Almost surely, 2^20634714290 is an apocalyptic number.

20634714290 is a deficient number, since it is larger than the sum of its proper divisors (16507771450).

20634714290 is a wasteful number, since it uses less digits than its factorization.

20634714290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063471436.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 20634714290 in words is "twenty billion, six hundred thirty-four million, seven hundred fourteen thousand, two hundred ninety".