620030173746091 has 2 divisors, whose sum is σ = 620030173746092. Its totient is φ = 620030173746090.

The previous prime is 620030173746077. The next prime is 620030173746161. The reversal of 620030173746091 is 190647371030026.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620030173746091 - 2³⁹ = 619480417932203 is a prime.

It is not a weakly prime, because it can be changed into another prime (620030173746031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310015086873045 + 310015086873046.

It is an arithmetic number, because the mean of its divisors is an integer number (310015086873046).

Almost surely, 2^{620030173746091} is an apocalyptic number.

620030173746091 is a deficient number, since it is larger than the sum of its proper divisors (1).

620030173746091 is an equidigital number, since it uses as much as digits as its factorization.

620030173746091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 620030173746091 in words is "six hundred twenty trillion, thirty billion, one hundred seventy-three million, seven hundred forty-six thousand, ninety-one".