20375432427 has 32 divisors (see below), whose sum is σ = 31557081600. Its totient is φ = 11453637888.

The previous prime is 20375432411. The next prime is 20375432461. The reversal of 20375432427 is 72423457302.

It is not a de Polignac number, because 20375432427 - 2⁴ = 20375432411 is a prime.

It is a super-2 number, since 2×20375432427² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20375432227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340524 + ... + 395862.

It is an arithmetic number, because the mean of its divisors is an integer number (986158800).

Almost surely, 2^20375432427 is an apocalyptic number.

20375432427 is a deficient number, since it is larger than the sum of its proper divisors (11181649173).

20375432427 is a wasteful number, since it uses less digits than its factorization.

20375432427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55635.

The product of its (nonzero) digits is 282240, while the sum is 39.

Adding to 20375432427 its reverse (72423457302), we get a palindrome (92798889729).

The spelling of 20375432427 in words is "twenty billion, three hundred seventy-five million, four hundred thirty-two thousand, four hundred twenty-seven".