21477313970107 has 2 divisors, whose sum is σ = 21477313970108. Its totient is φ = 21477313970106.

The previous prime is 21477313969999. The next prime is 21477313970201. The reversal of 21477313970107 is 70107931377412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21477313970107 - 2³⁵ = 21442954231739 is a prime.

It is a super-2 number, since 2×21477313970107² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21477313977107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10738656985053 + 10738656985054.

It is an arithmetic number, because the mean of its divisors is an integer number (10738656985054).

Almost surely, 2^{21477313970107} is an apocalyptic number.

21477313970107 is a deficient number, since it is larger than the sum of its proper divisors (1).

21477313970107 is an equidigital number, since it uses as much as digits as its factorization.

21477313970107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555848, while the sum is 52.

The spelling of 21477313970107 in words is "twenty-one trillion, four hundred seventy-seven billion, three hundred thirteen million, nine hundred seventy thousand, one hundred seven".