21008292879319 has 2 divisors, whose sum is σ = 21008292879320. Its totient is φ = 21008292879318.

The previous prime is 21008292879271. The next prime is 21008292879349. The reversal of 21008292879319 is 91397829280012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21008292879319 - 2¹³ = 21008292871127 is a prime.

It is a super-2 number, since 2×21008292879319² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21008292879349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10504146439659 + 10504146439660.

It is an arithmetic number, because the mean of its divisors is an integer number (10504146439660).

Almost surely, 2^{21008292879319} is an apocalyptic number.

21008292879319 is a deficient number, since it is larger than the sum of its proper divisors (1).

21008292879319 is an equidigital number, since it uses as much as digits as its factorization.

21008292879319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 21008292879319 in words is "twenty-one trillion, eight billion, two hundred ninety-two million, eight hundred seventy-nine thousand, three hundred nineteen".