2675660781 has 8 divisors (see below), whose sum is σ = 3578946880. Its totient is φ = 1778074272.

The previous prime is 2675660671. The next prime is 2675660783. The reversal of 2675660781 is 1870665762.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2675660781 - 2¹³ = 2675652589 is a prime.

It is a super-2 number, since 2×2675660781² = 14318321229963059922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2675660781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2675660783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1423801 + ... + 1425678.

It is an arithmetic number, because the mean of its divisors is an integer number (447368360).

Almost surely, 2^2675660781 is an apocalyptic number.

It is an amenable number.

2675660781 is a deficient number, since it is larger than the sum of its proper divisors (903286099).

2675660781 is a wasteful number, since it uses less digits than its factorization.

2675660781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849795.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 2675660781 is about 51726.7897805383. The cubic root of 2675660781 is about 1388.2798418462.

The spelling of 2675660781 in words is "two billion, six hundred seventy-five million, six hundred sixty thousand, seven hundred eighty-one".