61746068191 has 2 divisors, whose sum is σ = 61746068192. Its totient is φ = 61746068190.

The previous prime is 61746068179. The next prime is 61746068201. The reversal of 61746068191 is 19186064716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61746068191 - 2¹⁵ = 61746035423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61746068291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30873034095 + 30873034096.

It is an arithmetic number, because the mean of its divisors is an integer number (30873034096).

Almost surely, 2^61746068191 is an apocalyptic number.

61746068191 is a deficient number, since it is larger than the sum of its proper divisors (1).

61746068191 is an equidigital number, since it uses as much as digits as its factorization.

61746068191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 61746068191 in words is "sixty-one billion, seven hundred forty-six million, sixty-eight thousand, one hundred ninety-one".