61726361771 has 2 divisors, whose sum is σ = 61726361772. Its totient is φ = 61726361770.

The previous prime is 61726361759. The next prime is 61726361783. The reversal of 61726361771 is 17716362716.

It is a balanced prime because it is at equal distance from previous prime (61726361759) and next prime (61726361783).

It is a cyclic number.

It is not a de Polignac number, because 61726361771 - 2⁶ = 61726361707 is a prime.

It is not a weakly prime, because it can be changed into another prime (61726364771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30863180885 + 30863180886.

It is an arithmetic number, because the mean of its divisors is an integer number (30863180886).

Almost surely, 2^61726361771 is an apocalyptic number.

61726361771 is a deficient number, since it is larger than the sum of its proper divisors (1).

61726361771 is an equidigital number, since it uses as much as digits as its factorization.

61726361771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 47.

The spelling of 61726361771 in words is "sixty-one billion, seven hundred twenty-six million, three hundred sixty-one thousand, seven hundred seventy-one".