345621444191 has 2 divisors, whose sum is σ = 345621444192. Its totient is φ = 345621444190.

The previous prime is 345621444173. The next prime is 345621444209. The reversal of 345621444191 is 191444126543.

It is a balanced prime because it is at equal distance from previous prime (345621444173) and next prime (345621444209).

It is a cyclic number.

It is not a de Polignac number, because 345621444191 - 2¹⁴ = 345621427807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345621644191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172810722095 + 172810722096.

It is an arithmetic number, because the mean of its divisors is an integer number (172810722096).

Almost surely, 2^345621444191 is an apocalyptic number.

345621444191 is a deficient number, since it is larger than the sum of its proper divisors (1).

345621444191 is an equidigital number, since it uses as much as digits as its factorization.

345621444191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The spelling of 345621444191 in words is "three hundred forty-five billion, six hundred twenty-one million, four hundred forty-four thousand, one hundred ninety-one".