61710620893517 has 8 divisors (see below), whose sum is σ = 62037006113280. Its totient is φ = 61384269975840.

The previous prime is 61710620893501. The next prime is 61710620893543. The reversal of 61710620893517 is 71539802601716.

It is a happy number.

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 61710620893517 - 2⁴ = 61710620893501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61710620893217) 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 in 7 ways as a sum of consecutive naturals, for example, 4963928 + ... + 12168065.

It is an arithmetic number, because the mean of its divisors is an integer number (7754625764160).

Almost surely, 2^{61710620893517} is an apocalyptic number.

It is an amenable number.

61710620893517 is a deficient number, since it is larger than the sum of its proper divisors (326385219763).

61710620893517 is a wasteful number, since it uses less digits than its factorization.

61710620893517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17151043.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 61710620893517 in words is "sixty-one trillion, seven hundred ten billion, six hundred twenty million, eight hundred ninety-three thousand, five hundred seventeen".