20207395788 has 24 divisors (see below), whose sum is σ = 47423141808. Its totient is φ = 6696862656.

The previous prime is 20207395783. The next prime is 20207395829. The reversal of 20207395788 is 88759370202.

It is a self number, because there is not a number n which added to its sum of digits gives 20207395788.

It is not an unprimeable number, because it can be changed into a prime (20207395781) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4864831 + ... + 4868982.

It is an arithmetic number, because the mean of its divisors is an integer number (1975964242).

Almost surely, 2^20207395788 is an apocalyptic number.

It is an amenable number.

20207395788 is an abundant number, since it is smaller than the sum of its proper divisors (27215746020).

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

20207395788 is a wasteful number, since it uses less digits than its factorization.

20207395788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9733993 (or 9733991 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 20207395788 in words is "twenty billion, two hundred seven million, three hundred ninety-five thousand, seven hundred eighty-eight".