61296906993 has 16 divisors (see below), whose sum is σ = 94987944960. Its totient is φ = 34433128656.

The previous prime is 61296906989. The next prime is 61296907013. The reversal of 61296906993 is 39960969216.

It is a happy number.

It is not a de Polignac number, because 61296906993 - 2² = 61296906989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61296901993) 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 in 15 ways as a sum of consecutive naturals, for example, 24735205 + ... + 24737682.

It is an arithmetic number, because the mean of its divisors is an integer number (5936746560).

Almost surely, 2^61296906993 is an apocalyptic number.

It is an amenable number.

61296906993 is a deficient number, since it is larger than the sum of its proper divisors (33691037967).

61296906993 is a wasteful number, since it uses less digits than its factorization.

61296906993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49472956.

The product of its (nonzero) digits is 8503056, while the sum is 60.

The spelling of 61296906993 in words is "sixty-one billion, two hundred ninety-six million, nine hundred six thousand, nine hundred ninety-three".