61819764695041 has 8 divisors (see below), whose sum is σ = 61832152965440. Its totient is φ = 61807377637872.

The previous prime is 61819764695021. The next prime is 61819764695099. The reversal of 61819764695041 is 14059646791816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61819764695041 - 2²¹ = 61819762597889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61819764695021) 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 7 ways as a sum of consecutive naturals, for example, 105265966 + ... + 105851608.

It is an arithmetic number, because the mean of its divisors is an integer number (7729019120680).

Almost surely, 2^{61819764695041} is an apocalyptic number.

It is an amenable number.

61819764695041 is a deficient number, since it is larger than the sum of its proper divisors (12388270399).

61819764695041 is a wasteful number, since it uses less digits than its factorization.

61819764695041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606615.

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 61819764695041 in words is "sixty-one trillion, eight hundred nineteen billion, seven hundred sixty-four million, six hundred ninety-five thousand, forty-one".