20697627883 has 4 divisors (see below), whose sum is σ = 20721893248. Its totient is φ = 20673362520.

The previous prime is 20697627871. The next prime is 20697627889. The reversal of 20697627883 is 38872679602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38872679602 = 2 ⋅19436339801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20697627883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20697627889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12131403 + ... + 12133108.

It is an arithmetic number, because the mean of its divisors is an integer number (5180473312).

Almost surely, 2^20697627883 is an apocalyptic number.

20697627883 is a deficient number, since it is larger than the sum of its proper divisors (24265365).

20697627883 is an equidigital number, since it uses as much as digits as its factorization.

20697627883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24265364.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 20697627883 in words is "twenty billion, six hundred ninety-seven million, six hundred twenty-seven thousand, eight hundred eighty-three".