20886213407 has 2 divisors, whose sum is σ = 20886213408. Its totient is φ = 20886213406.

The previous prime is 20886213343. The next prime is 20886213409. The reversal of 20886213407 is 70431268802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20886213407 - 2⁶ = 20886213343 is a prime.

It is a super-3 number, since 3×20886213407³ (a number of 32 digits) contains 333 as substring.

Together with 20886213409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20886213409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10443106703 + 10443106704.

It is an arithmetic number, because the mean of its divisors is an integer number (10443106704).

Almost surely, 2^20886213407 is an apocalyptic number.

20886213407 is a deficient number, since it is larger than the sum of its proper divisors (1).

20886213407 is an equidigital number, since it uses as much as digits as its factorization.

20886213407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 20886213407 in words is "twenty billion, eight hundred eighty-six million, two hundred thirteen thousand, four hundred seven".