61047314191 has 2 divisors, whose sum is σ = 61047314192. Its totient is φ = 61047314190.

The previous prime is 61047314189. The next prime is 61047314197. The reversal of 61047314191 is 19141374016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61047314191 - 2¹ = 61047314189 is a prime.

Together with 61047314189, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61047314191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61047314197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30523657095 + 30523657096.

It is an arithmetic number, because the mean of its divisors is an integer number (30523657096).

Almost surely, 2^61047314191 is an apocalyptic number.

61047314191 is a deficient number, since it is larger than the sum of its proper divisors (1).

61047314191 is an equidigital number, since it uses as much as digits as its factorization.

61047314191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 61047314191 in words is "sixty-one billion, forty-seven million, three hundred fourteen thousand, one hundred ninety-one".