61682100629 has 2 divisors, whose sum is σ = 61682100630. Its totient is φ = 61682100628.

The previous prime is 61682100619. The next prime is 61682100643. The reversal of 61682100629 is 92600128616.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55105215025 + 6576885604 = 234745^2 + 81098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61682100629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61682100619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30841050314 + 30841050315.

It is an arithmetic number, because the mean of its divisors is an integer number (30841050315).

Almost surely, 2^61682100629 is an apocalyptic number.

It is an amenable number.

61682100629 is a deficient number, since it is larger than the sum of its proper divisors (1).

61682100629 is an equidigital number, since it uses as much as digits as its factorization.

61682100629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 61682100629 in words is "sixty-one billion, six hundred eighty-two million, one hundred thousand, six hundred twenty-nine".