6745974920 has 32 divisors (see below), whose sum is σ = 15199216920. Its totient is φ = 2694696960.

The previous prime is 6745974913. The next prime is 6745974967. The reversal of 6745974920 is 294795476.

It can be written as a sum of positive squares in 4 ways, for example, as 6571047844 + 174927076 = 81062^2 + 13226^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85721 + ... + 144360.

Almost surely, 2^6745974920 is an apocalyptic number.

It is an amenable number.

6745974920 is an abundant number, since it is smaller than the sum of its proper divisors (8453242000).

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

6745974920 is a wasteful number, since it uses less digits than its factorization.

6745974920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230825 (or 230821 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The square root of 6745974920 is about 82133.8841161186. The cubic root of 6745974920 is about 1889.5058495557.

The spelling of 6745974920 in words is "six billion, seven hundred forty-five million, nine hundred seventy-four thousand, nine hundred twenty".