2878066657 has 8 divisors (see below), whose sum is σ = 2885212800. Its totient is φ = 2870931024.

The previous prime is 2878066637. The next prime is 2878066699. The reversal of 2878066657 is 7566608782.

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 2878066657 - 2¹⁵ = 2878033889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2878066598 and 2878066607.

It is not an unprimeable number, because it can be changed into a prime (2878066637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843048 + ... + 846454.

It is an arithmetic number, because the mean of its divisors is an integer number (360651600).

Almost surely, 2^2878066657 is an apocalyptic number.

It is an amenable number.

2878066657 is a deficient number, since it is larger than the sum of its proper divisors (7146143).

2878066657 is a wasteful number, since it uses less digits than its factorization.

2878066657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255.

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

The square root of 2878066657 is about 53647.6155760906. The cubic root of 2878066657 is about 1422.4388850312.

The spelling of 2878066657 in words is "two billion, eight hundred seventy-eight million, sixty-six thousand, six hundred fifty-seven".