2660878371 has 8 divisors (see below), whose sum is σ = 3549735504. Its totient is φ = 1772970080.

The previous prime is 2660878357. The next prime is 2660878379. The reversal of 2660878371 is 1738780662.

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 2660878371 - 2⁶ = 2660878307 is a prime.

It is a super-2 number, since 2×2660878371² = 14160547410511227282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2660878371.

It is not an unprimeable number, because it can be changed into a prime (2660878379) 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, 230640 + ... + 241901.

It is an arithmetic number, because the mean of its divisors is an integer number (443716938).

Almost surely, 2^2660878371 is an apocalyptic number.

2660878371 is a deficient number, since it is larger than the sum of its proper divisors (888857133).

2660878371 is a wasteful number, since it uses less digits than its factorization.

2660878371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474421.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 2660878371 is about 51583.7025716456. The cubic root of 2660878371 is about 1385.7184768524.

The spelling of 2660878371 in words is "two billion, six hundred sixty million, eight hundred seventy-eight thousand, three hundred seventy-one".