620412134171 has 2 divisors, whose sum is σ = 620412134172. Its totient is φ = 620412134170.

The previous prime is 620412134137. The next prime is 620412134233. The reversal of 620412134171 is 171431214026.

620412134171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620412134171 is a prime.

It is a super-2 number, since 2×620412134171² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (620412134071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310206067085 + 310206067086.

It is an arithmetic number, because the mean of its divisors is an integer number (310206067086).

Almost surely, 2^620412134171 is an apocalyptic number.

620412134171 is a deficient number, since it is larger than the sum of its proper divisors (1).

620412134171 is an equidigital number, since it uses as much as digits as its factorization.

620412134171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

Adding to 620412134171 its reverse (171431214026), we get a palindrome (791843348197).

The spelling of 620412134171 in words is "six hundred twenty billion, four hundred twelve million, one hundred thirty-four thousand, one hundred seventy-one".