6784157956 has 9 divisors (see below), whose sum is σ = 11872564711. Its totient is φ = 3391996612.

The previous prime is 6784157927. The next prime is 6784157957. The reversal of 6784157956 is 6597514876.

The square root of 6784157956 is 82366.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6784157956.

It is not an unprimeable number, because it can be changed into a prime (6784157957) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 144141 + ... + 185323.

Almost surely, 2^6784157956 is an apocalyptic number.

6784157956 is the 82366-th square number.

It is an amenable number.

6784157956 is a deficient number, since it is larger than the sum of its proper divisors (5088406755).

6784157956 is an frugal number, since it uses more digits than its factorization.

6784157956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82370 (or 41185 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 58.

The cubic root of 6784157956 is about 1893.0640886917.

The spelling of 6784157956 in words is "six billion, seven hundred eighty-four million, one hundred fifty-seven thousand, nine hundred fifty-six".