6378752605 has 8 divisors (see below), whose sum is σ = 7690781664. Its totient is φ = 5078816400.

The previous prime is 6378752591. The next prime is 6378752647. The reversal of 6378752605 is 5062578736.

6378752605 = T₇₆₇₀ + T₇₆₇₁ + ... + T₇₈₈₀.

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

It is a de Polignac number, because none of the positive numbers 2^k-6378752605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3022051 + ... + 3024160.

It is an arithmetic number, because the mean of its divisors is an integer number (961347708).

Almost surely, 2^6378752605 is an apocalyptic number.

It is an amenable number.

6378752605 is a deficient number, since it is larger than the sum of its proper divisors (1312029059).

6378752605 is a wasteful number, since it uses less digits than its factorization.

6378752605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6046427.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The square root of 6378752605 is about 79867.0933801901. The cubic root of 6378752605 is about 1854.5786373759.

The spelling of 6378752605 in words is "six billion, three hundred seventy-eight million, seven hundred fifty-two thousand, six hundred five".