513240211447 has 2 divisors, whose sum is σ = 513240211448. Its totient is φ = 513240211446.

The previous prime is 513240211439. The next prime is 513240211457. The reversal of 513240211447 is 744112042315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513240211447 - 2³ = 513240211439 is a prime.

It is a super-2 number, since 2×513240211447² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513240211427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256620105723 + 256620105724.

It is an arithmetic number, because the mean of its divisors is an integer number (256620105724).

Almost surely, 2^513240211447 is an apocalyptic number.

513240211447 is a deficient number, since it is larger than the sum of its proper divisors (1).

513240211447 is an equidigital number, since it uses as much as digits as its factorization.

513240211447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 513240211447 in words is "five hundred thirteen billion, two hundred forty million, two hundred eleven thousand, four hundred forty-seven".