20507829910 has 8 divisors (see below), whose sum is σ = 36914093856. Its totient is φ = 8203131960.

The previous prime is 20507829907. The next prime is 20507829967. The reversal of 20507829910 is 1992870502.

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

It is a congruent number.

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, 1025391486 + ... + 1025391505.

It is an arithmetic number, because the mean of its divisors is an integer number (4614261732).

Almost surely, 2^20507829910 is an apocalyptic number.

20507829910 is a deficient number, since it is larger than the sum of its proper divisors (16406263946).

20507829910 is a wasteful number, since it uses less digits than its factorization.

20507829910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050782998.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 20507829910 in words is "twenty billion, five hundred seven million, eight hundred twenty-nine thousand, nine hundred ten".