2008778671 has 8 divisors (see below), whose sum is σ = 2019336704. Its totient is φ = 1998247320.

The previous prime is 2008778663. The next prime is 2008778677. The reversal of 2008778671 is 1768778002.

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 2008778671 - 2³ = 2008778663 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 (2008778677) 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, 154306 + ... + 166816.

It is an arithmetic number, because the mean of its divisors is an integer number (252417088).

Almost surely, 2^2008778671 is an apocalyptic number.

2008778671 is a deficient number, since it is larger than the sum of its proper divisors (10558033).

2008778671 is a wasteful number, since it uses less digits than its factorization.

2008778671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13341.

The product of its (nonzero) digits is 263424, while the sum is 46.

The square root of 2008778671 is about 44819.4006095575. The cubic root of 2008778671 is about 1261.7617647416.

The spelling of 2008778671 in words is "two billion, eight million, seven hundred seventy-eight thousand, six hundred seventy-one".