20700432744 has 16 divisors (see below), whose sum is σ = 51751081920. Its totient is φ = 6900144240.

The previous prime is 20700432719. The next prime is 20700432749. The reversal of 20700432744 is 44723400702.

It is not an unprimeable number, because it can be changed into a prime (20700432749) 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 3 ways as a sum of consecutive naturals, for example, 431258992 + ... + 431259039.

It is an arithmetic number, because the mean of its divisors is an integer number (3234442620).

Almost surely, 2^20700432744 is an apocalyptic number.

20700432744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20700432744 is an abundant number, since it is smaller than the sum of its proper divisors (31050649176).

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

20700432744 is a wasteful number, since it uses less digits than its factorization.

20700432744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862518040 (or 862518036 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 33.

The spelling of 20700432744 in words is "twenty billion, seven hundred million, four hundred thirty-two thousand, seven hundred forty-four".