21214036462613 has 2 divisors, whose sum is σ = 21214036462614. Its totient is φ = 21214036462612.

The previous prime is 21214036462573. The next prime is 21214036462627. The reversal of 21214036462613 is 31626463041212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20877424149124 + 336612313489 = 4569182^2 + 580183^2 .

It is a cyclic number.

It is not a de Polignac number, because 21214036462613 - 2³² = 21209741495317 is a prime.

It is a super-2 number, since 2×21214036462613² (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 (21214036462313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10607018231306 + 10607018231307.

It is an arithmetic number, because the mean of its divisors is an integer number (10607018231307).

Almost surely, 2^{21214036462613} is an apocalyptic number.

It is an amenable number.

21214036462613 is a deficient number, since it is larger than the sum of its proper divisors (1).

21214036462613 is an equidigital number, since it uses as much as digits as its factorization.

21214036462613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 21214036462613 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, four hundred sixty-two thousand, six hundred thirteen".