61614946793 has 2 divisors, whose sum is σ = 61614946794. Its totient is φ = 61614946792.

The previous prime is 61614946781. The next prime is 61614946837. The reversal of 61614946793 is 39764941616.

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., 42190392409 + 19424554384 = 205403^2 + 139372^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61614946793 is a prime.

It is not a weakly prime, because it can be changed into another prime (61614946733) 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, 30807473396 + 30807473397.

It is an arithmetic number, because the mean of its divisors is an integer number (30807473397).

Almost surely, 2^61614946793 is an apocalyptic number.

It is an amenable number.

61614946793 is a deficient number, since it is larger than the sum of its proper divisors (1).

61614946793 is an equidigital number, since it uses as much as digits as its factorization.

61614946793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 56.

The spelling of 61614946793 in words is "sixty-one billion, six hundred fourteen million, nine hundred forty-six thousand, seven hundred ninety-three".