677100000061 has 4 divisors (see below), whose sum is σ = 688200000124. Its totient is φ = 666000000000.

The previous prime is 677100000019. The next prime is 677100000103. The reversal of 677100000061 is 160000001776.

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

It is an interprime number because it is at equal distance from previous prime (677100000019) and next prime (677100000103).

It can be written as a sum of positive squares in 2 ways, for example, as 126675487225 + 550424512836 = 355915^2 + 741906^2 .

It is a cyclic number.

It is not a de Polignac number, because 677100000061 - 2⁹ = 677099999549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677099999975 and 677100000029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677100006061) 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, 5549999940 + ... + 5550000061.

It is an arithmetic number, because the mean of its divisors is an integer number (172050000031).

Almost surely, 2^677100000061 is an apocalyptic number.

677100000061 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

677100000061 is a deficient number, since it is larger than the sum of its proper divisors (11100000063).

677100000061 is a wasteful number, since it uses less digits than its factorization.

677100000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100000062.

The product of its (nonzero) digits is 1764, while the sum is 28.

The spelling of 677100000061 in words is "six hundred seventy-seven billion, one hundred million, sixty-one", and thus it is an aban number.