2077866865 has 8 divisors (see below), whose sum is σ = 2495338560. Its totient is φ = 1661027952.

The previous prime is 2077866863. The next prime is 2077866877. The reversal of 2077866865 is 5686687702.

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 2077866865 - 2¹ = 2077866863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2077866863) 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, 150939 + ... + 164128.

It is an arithmetic number, because the mean of its divisors is an integer number (311917320).

Almost surely, 2^2077866865 is an apocalyptic number.

It is an amenable number.

2077866865 is a deficient number, since it is larger than the sum of its proper divisors (417471695).

2077866865 is a wasteful number, since it uses less digits than its factorization.

2077866865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316391.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The square root of 2077866865 is about 45583.6249655510. The cubic root of 2077866865 is about 1276.0643405367.

The spelling of 2077866865 in words is "two billion, seventy-seven million, eight hundred sixty-six thousand, eight hundred sixty-five".