21470547253151 has 2 divisors, whose sum is σ = 21470547253152. Its totient is φ = 21470547253150.

The previous prime is 21470547253123. The next prime is 21470547253171. The reversal of 21470547253151 is 15135274507412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21470547253151 - 2²⁶ = 21470480144287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21470547253096 and 21470547253105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21470547253121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10735273626575 + 10735273626576.

It is an arithmetic number, because the mean of its divisors is an integer number (10735273626576).

Almost surely, 2^{21470547253151} is an apocalyptic number.

21470547253151 is a deficient number, since it is larger than the sum of its proper divisors (1).

21470547253151 is an equidigital number, since it uses as much as digits as its factorization.

21470547253151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 21470547253151 in words is "twenty-one trillion, four hundred seventy billion, five hundred forty-seven million, two hundred fifty-three thousand, one hundred fifty-one".