6781392552 has 64 divisors (see below), whose sum is σ = 18576345600. Its totient is φ = 2045896640.

The previous prime is 6781392551. The next prime is 6781392571. The reversal of 6781392552 is 2552931876.

It is not an unprimeable number, because it can be changed into a prime (6781392551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3349 + ... + 116507.

It is an arithmetic number, because the mean of its divisors is an integer number (290255400).

Almost surely, 2^6781392552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6781392552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9288172800).

6781392552 is an abundant number, since it is smaller than the sum of its proper divisors (11794953048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6781392552 is a wasteful number, since it uses less digits than its factorization.

6781392552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113406 (or 113402 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 6781392552 is about 82349.2109980417. The cubic root of 6781392552 is about 1892.8068325704.

The spelling of 6781392552 in words is "six billion, seven hundred eighty-one million, three hundred ninety-two thousand, five hundred fifty-two".