610677980861 has 8 divisors (see below), whose sum is σ = 680330907480. Its totient is φ = 544264725312.

The previous prime is 610677980851. The next prime is 610677980879. The reversal of 610677980861 is 168089776016.

It can be written as a sum of positive squares in 4 ways, for example, as 127381892836 + 483296088025 = 356906^2 + 695195^2 .

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 610677980861 - 2¹⁰ = 610677979837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 610677980861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610677980851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809917370 + ... + 809918123.

It is an arithmetic number, because the mean of its divisors is an integer number (85041363435).

Almost surely, 2^610677980861 is an apocalyptic number.

It is an amenable number.

610677980861 is a deficient number, since it is larger than the sum of its proper divisors (69652926619).

610677980861 is a wasteful number, since it uses less digits than its factorization.

610677980861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619835535.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The spelling of 610677980861 in words is "six hundred ten billion, six hundred seventy-seven million, nine hundred eighty thousand, eight hundred sixty-one".