20127402263 has 8 divisors (see below), whose sum is σ = 21629448432. Its totient is φ = 18660698496.

The previous prime is 20127402257. The next prime is 20127402277. The reversal of 20127402263 is 36220472102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20127402263 - 2⁸ = 20127402007 is a prime.

It is a super-2 number, since 2×20127402263² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20127402863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8834420 + ... + 8836697.

It is an arithmetic number, because the mean of its divisors is an integer number (2703681054).

Almost surely, 2^20127402263 is an apocalyptic number.

20127402263 is a deficient number, since it is larger than the sum of its proper divisors (1502046169).

20127402263 is a wasteful number, since it uses less digits than its factorization.

20127402263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17671201.

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 20127402263 its reverse (36220472102), we get a palindrome (56347874365).

The spelling of 20127402263 in words is "twenty billion, one hundred twenty-seven million, four hundred two thousand, two hundred sixty-three".