20895869740 has 24 divisors (see below), whose sum is σ = 43897244832. Its totient is φ = 8355315840.

The previous prime is 20895869711. The next prime is 20895869749. The reversal of 20895869740 is 4796859802.

It is not an unprimeable number, because it can be changed into a prime (20895869749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132576 + ... + 243655.

It is an arithmetic number, because the mean of its divisors is an integer number (1829051868).

Almost surely, 2^20895869740 is an apocalyptic number.

20895869740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20895869740 is an abundant number, since it is smaller than the sum of its proper divisors (23001375092).

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

20895869740 is a wasteful number, since it uses less digits than its factorization.

20895869740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379017 (or 379015 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 20895869740 in words is "twenty billion, eight hundred ninety-five million, eight hundred sixty-nine thousand, seven hundred forty".