6570642740 has 12 divisors (see below), whose sum is σ = 13798349796. Its totient is φ = 2628257088.

The previous prime is 6570642713. The next prime is 6570642773. The reversal of 6570642740 is 472460756.

It can be written as a sum of positive squares in 2 ways, for example, as 4042162084 + 2528480656 = 63578^2 + 50284^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164266049 + ... + 164266088.

It is an arithmetic number, because the mean of its divisors is an integer number (1149862483).

Almost surely, 2^6570642740 is an apocalyptic number.

It is an amenable number.

6570642740 is an abundant number, since it is smaller than the sum of its proper divisors (7227707056).

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

6570642740 is a wasteful number, since it uses less digits than its factorization.

6570642740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328532146 (or 328532144 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 6570642740 is about 81059.5012321196. The cubic root of 6570642740 is about 1872.9921252090.

The spelling of 6570642740 in words is "six billion, five hundred seventy million, six hundred forty-two thousand, seven hundred forty".