21626275153031 has 2 divisors, whose sum is σ = 21626275153032. Its totient is φ = 21626275153030.

The previous prime is 21626275152983. The next prime is 21626275153051. The reversal of 21626275153031 is 13035157262612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21626275153031 is a prime.

It is a super-2 number, since 2×21626275153031² (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 (21626275153051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10813137576515 + 10813137576516.

It is an arithmetic number, because the mean of its divisors is an integer number (10813137576516).

Almost surely, 2^{21626275153031} is an apocalyptic number.

21626275153031 is a deficient number, since it is larger than the sum of its proper divisors (1).

21626275153031 is an equidigital number, since it uses as much as digits as its factorization.

21626275153031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 21626275153031 in words is "twenty-one trillion, six hundred twenty-six billion, two hundred seventy-five million, one hundred fifty-three thousand, thirty-one".