6782901988 has 12 divisors (see below), whose sum is σ = 12279391740. Its totient is φ = 3274504352.

The previous prime is 6782901973. The next prime is 6782901991. The reversal of 6782901988 is 8891092876.

It can be written as a sum of positive squares in 2 ways, for example, as 5366734564 + 1416167424 = 73258^2 + 37632^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29236531 + ... + 29236762.

It is an arithmetic number, because the mean of its divisors is an integer number (1023282645).

Almost surely, 2^6782901988 is an apocalyptic number.

It is an amenable number.

6782901988 is a deficient number, since it is larger than the sum of its proper divisors (5496489752).

6782901988 is a wasteful number, since it uses less digits than its factorization.

6782901988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58473326 (or 58473324 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 58.

The square root of 6782901988 is about 82358.3753360883. The cubic root of 6782901988 is about 1892.9472589306.

The spelling of 6782901988 in words is "six billion, seven hundred eighty-two million, nine hundred one thousand, nine hundred eighty-eight".