6780375655 has 8 divisors (see below), whose sum is σ = 8137008000. Its totient is φ = 5423929056.

The previous prime is 6780375647. The next prime is 6780375691. The reversal of 6780375655 is 5565730876.

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 6780375655 - 2³ = 6780375647 is a prime.

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, 53386 + ... + 128104.

It is an arithmetic number, because the mean of its divisors is an integer number (1017126000).

Almost surely, 2^6780375655 is an apocalyptic number.

6780375655 is a deficient number, since it is larger than the sum of its proper divisors (1356632345).

6780375655 is a wasteful number, since it uses less digits than its factorization.

6780375655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92873.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The square root of 6780375655 is about 82343.0364693943. The cubic root of 6780375655 is about 1892.7122165166.

The spelling of 6780375655 in words is "six billion, seven hundred eighty million, three hundred seventy-five thousand, six hundred fifty-five".