20386883730 has 64 divisors (see below), whose sum is σ = 49448475648. Its totient is φ = 5378827200.

The previous prime is 20386883707. The next prime is 20386883761. The reversal of 20386883730 is 3738868302.

It is a self number, because there is not a number n which added to its sum of digits gives 20386883730.

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 31 ways as a sum of consecutive naturals, for example, 4481317 + ... + 4485863.

It is an arithmetic number, because the mean of its divisors is an integer number (772632432).

Almost surely, 2^20386883730 is an apocalyptic number.

20386883730 is an abundant number, since it is smaller than the sum of its proper divisors (29061591918).

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

20386883730 is a wasteful number, since it uses less digits than its factorization.

20386883730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 20386883730 in words is "twenty billion, three hundred eighty-six million, eight hundred eighty-three thousand, seven hundred thirty".