3678875781 has 8 divisors (see below), whose sum is σ = 5605905984. Its totient is φ = 2102214720.

The previous prime is 3678875777. The next prime is 3678875789. The reversal of 3678875781 is 1875788763.

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

It is not a de Polignac number, because 3678875781 - 2² = 3678875777 is a prime.

It is a super-2 number, since 2×3678875781² = 27068254024056719922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678875789) 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, 87592260 + ... + 87592301.

It is an arithmetic number, because the mean of its divisors is an integer number (700738248).

Almost surely, 2^3678875781 is an apocalyptic number.

It is an amenable number.

3678875781 is a deficient number, since it is larger than the sum of its proper divisors (1927030203).

3678875781 is a wasteful number, since it uses less digits than its factorization.

3678875781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175184571.

The product of its digits is 15805440, while the sum is 60.

The square root of 3678875781 is about 60653.7367439138. The cubic root of 3678875781 is about 1543.7312934819.

The spelling of 3678875781 in words is "three billion, six hundred seventy-eight million, eight hundred seventy-five thousand, seven hundred eighty-one".