6978230189956 has 81 divisors (see below), whose sum is σ = 12752324973381. Its totient is φ = 3341138683200.

The previous prime is 6978230189951. The next prime is 6978230190023. The reversal of 6978230189956 is 6599810328796.

The square root of 6978230189956 is 2641634.

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

It can be written as a sum of positive squares in only one way, i.e., 4099045652100 + 2879184537856 = 2024610^2 + 1696816^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6978230189951) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22438039041 + ... + 22438039351.

Almost surely, 2^{6978230189956} is an apocalyptic number.

6978230189956 is the 2641634-th square number.

It is an amenable number.

6978230189956 is a deficient number, since it is larger than the sum of its proper divisors (5774094783425).

6978230189956 is an equidigital number, since it uses as much as digits as its factorization.

6978230189956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 352719360, while the sum is 73.

The spelling of 6978230189956 in words is "six trillion, nine hundred seventy-eight billion, two hundred thirty million, one hundred eighty-nine thousand, nine hundred fifty-six".