61612114649 has 2 divisors, whose sum is σ = 61612114650. Its totient is φ = 61612114648.

The previous prime is 61612114609. The next prime is 61612114769. The reversal of 61612114649 is 94641121616.

61612114649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34042833049 + 27569281600 = 184507^2 + 166040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61612114649 is a prime.

It is not a weakly prime, because it can be changed into another prime (61612114609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30806057324 + 30806057325.

It is an arithmetic number, because the mean of its divisors is an integer number (30806057325).

Almost surely, 2^61612114649 is an apocalyptic number.

It is an amenable number.

61612114649 is a deficient number, since it is larger than the sum of its proper divisors (1).

61612114649 is an equidigital number, since it uses as much as digits as its factorization.

61612114649 is an evil number, because the sum of its binary digits is even.

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

The spelling of 61612114649 in words is "sixty-one billion, six hundred twelve million, one hundred fourteen thousand, six hundred forty-nine".