20152744327 has 4 divisors (see below), whose sum is σ = 20532984840. Its totient is φ = 19772503816.

The previous prime is 20152744321. The next prime is 20152744357. The reversal of 20152744327 is 72344725102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20152744327 - 2¹¹ = 20152742279 is a prime.

It is a super-2 number, since 2×20152744327² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152744321) 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, 190120177 + ... + 190120282.

It is an arithmetic number, because the mean of its divisors is an integer number (5133246210).

Almost surely, 2^20152744327 is an apocalyptic number.

20152744327 is a deficient number, since it is larger than the sum of its proper divisors (380240513).

20152744327 is an equidigital number, since it uses as much as digits as its factorization.

20152744327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380240512.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 20152744327 in words is "twenty billion, one hundred fifty-two million, seven hundred forty-four thousand, three hundred twenty-seven".