610887605717 has 4 divisors (see below), whose sum is σ = 610901139660. Its totient is φ = 610874071776.

The previous prime is 610887605687. The next prime is 610887605743. The reversal of 610887605717 is 717506788016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 467754773476 + 143132832241 = 683926^2 + 378329^2 .

It is a cyclic number.

It is not a de Polignac number, because 610887605717 - 2²⁸ = 610619170261 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 (610887605767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6699038 + ... + 6789615.

It is an arithmetic number, because the mean of its divisors is an integer number (152725284915).

Almost surely, 2^610887605717 is an apocalyptic number.

It is an amenable number.

610887605717 is a deficient number, since it is larger than the sum of its proper divisors (13533943).

610887605717 is a wasteful number, since it uses less digits than its factorization.

610887605717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13533942.

The product of its (nonzero) digits is 3951360, while the sum is 56.

The spelling of 610887605717 in words is "six hundred ten billion, eight hundred eighty-seven million, six hundred five thousand, seven hundred seventeen".