61193354671 has 2 divisors, whose sum is σ = 61193354672. Its totient is φ = 61193354670.

The previous prime is 61193354669. The next prime is 61193354759. The reversal of 61193354671 is 17645339116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61193354671 - 2¹ = 61193354669 is a prime.

Together with 61193354669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61193354371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30596677335 + 30596677336.

It is an arithmetic number, because the mean of its divisors is an integer number (30596677336).

Almost surely, 2^61193354671 is an apocalyptic number.

61193354671 is a deficient number, since it is larger than the sum of its proper divisors (1).

61193354671 is an equidigital number, since it uses as much as digits as its factorization.

61193354671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 46.

The spelling of 61193354671 in words is "sixty-one billion, one hundred ninety-three million, three hundred fifty-four thousand, six hundred seventy-one".