20634246850 has 48 divisors (see below), whose sum is σ = 43876441728. Its totient is φ = 7072352640.

The previous prime is 20634246799. The next prime is 20634246851. The reversal of 20634246850 is 5864243602.

It is not an unprimeable number, because it can be changed into a prime (20634246851) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1395094 + ... + 1409806.

It is an arithmetic number, because the mean of its divisors is an integer number (914092536).

Almost surely, 2^20634246850 is an apocalyptic number.

20634246850 is an abundant number, since it is smaller than the sum of its proper divisors (23242194878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20634246850 is a wasteful number, since it uses less digits than its factorization.

20634246850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18739 (or 18734 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 20634246850 in words is "twenty billion, six hundred thirty-four million, two hundred forty-six thousand, eight hundred fifty".