21359470151 has 2 divisors, whose sum is σ = 21359470152. Its totient is φ = 21359470150.

The previous prime is 21359470091. The next prime is 21359470169. The reversal of 21359470151 is 15107495312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21359470151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21359470351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10679735075 + 10679735076.

It is an arithmetic number, because the mean of its divisors is an integer number (10679735076).

Almost surely, 2^21359470151 is an apocalyptic number.

21359470151 is a deficient number, since it is larger than the sum of its proper divisors (1).

21359470151 is an equidigital number, since it uses as much as digits as its factorization.

21359470151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 21359470151 in words is "twenty-one billion, three hundred fifty-nine million, four hundred seventy thousand, one hundred fifty-one".