20783858234 has 8 divisors (see below), whose sum is σ = 31315589760. Its totient is φ = 10345328316.

The previous prime is 20783858201. The next prime is 20783858309. The reversal of 20783858234 is 43285838702.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23299844 + ... + 23300735.

It is an arithmetic number, because the mean of its divisors is an integer number (3914448720).

Almost surely, 2^20783858234 is an apocalyptic number.

20783858234 is a deficient number, since it is larger than the sum of its proper divisors (10531731526).

20783858234 is a wasteful number, since it uses less digits than its factorization.

20783858234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46600804.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 20783858234 in words is "twenty billion, seven hundred eighty-three million, eight hundred fifty-eight thousand, two hundred thirty-four".