2077681705 has 16 divisors (see below), whose sum is σ = 2721046464. Its totient is φ = 1510390080.

The previous prime is 2077681693. The next prime is 2077681709. The reversal of 2077681705 is 5071867702.

It is not a de Polignac number, because 2077681705 - 2¹⁹ = 2077157417 is a prime.

It is a super-2 number, since 2×2077681705² = 8633522534583414050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2077681709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147427 + ... + 160903.

It is an arithmetic number, because the mean of its divisors is an integer number (170065404).

Almost surely, 2^2077681705 is an apocalyptic number.

It is an amenable number.

2077681705 is a deficient number, since it is larger than the sum of its proper divisors (643364759).

2077681705 is a wasteful number, since it uses less digits than its factorization.

2077681705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16296.

The product of its (nonzero) digits is 164640, while the sum is 43.

The square root of 2077681705 is about 45581.5939278126. The cubic root of 2077681705 is about 1276.0264357835.

The spelling of 2077681705 in words is "two billion, seventy-seven million, six hundred eighty-one thousand, seven hundred five".