20469320904 has 32 divisors (see below), whose sum is σ = 51177373920. Its totient is φ = 6822564096.

The previous prime is 20469320899. The next prime is 20469320909. The reversal of 20469320904 is 40902396402.

It is an interprime number because it is at equal distance from previous prime (20469320899) and next prime (20469320909).

It is not an unprimeable number, because it can be changed into a prime (20469320909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374167 + ... + 425369.

It is an arithmetic number, because the mean of its divisors is an integer number (1599292935).

Almost surely, 2^20469320904 is an apocalyptic number.

20469320904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20469320904 is an abundant number, since it is smaller than the sum of its proper divisors (30708053016).

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

20469320904 is a wasteful number, since it uses less digits than its factorization.

20469320904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67869 (or 67865 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 20469320904 in words is "twenty billion, four hundred sixty-nine million, three hundred twenty thousand, nine hundred four".