20427361575 has 12 divisors (see below), whose sum is σ = 33773237928. Its totient is φ = 10894592800.

The previous prime is 20427361499. The next prime is 20427361589. The reversal of 20427361575 is 57516372402.

It is not a de Polignac number, because 20427361575 - 2⁷ = 20427361447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136182336 + ... + 136182485.

It is an arithmetic number, because the mean of its divisors is an integer number (2814436494).

Almost surely, 2^20427361575 is an apocalyptic number.

20427361575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20427361575 is a deficient number, since it is larger than the sum of its proper divisors (13345876353).

20427361575 is a wasteful number, since it uses less digits than its factorization.

20427361575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272364834 (or 272364829 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 20427361575 in words is "twenty billion, four hundred twenty-seven million, three hundred sixty-one thousand, five hundred seventy-five".