61306134751 has 2 divisors, whose sum is σ = 61306134752. Its totient is φ = 61306134750.

The previous prime is 61306134713. The next prime is 61306134761. The reversal of 61306134751 is 15743160316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61306134751 - 2¹¹ = 61306132703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61306134751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61306134761) 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, 30653067375 + 30653067376.

It is an arithmetic number, because the mean of its divisors is an integer number (30653067376).

Almost surely, 2^61306134751 is an apocalyptic number.

61306134751 is a deficient number, since it is larger than the sum of its proper divisors (1).

61306134751 is an equidigital number, since it uses as much as digits as its factorization.

61306134751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 61306134751 in words is "sixty-one billion, three hundred six million, one hundred thirty-four thousand, seven hundred fifty-one".