679341905284 has 81 divisors (see below), whose sum is σ = 1397976032271. Its totient is φ = 288016135680.

The previous prime is 679341905267. The next prime is 679341905327. The reversal of 679341905284 is 482509143976.

The square root of 679341905284 is 824222.

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

It can be written as a sum of positive squares in 4 ways, for example, as 398577568900 + 280764336384 = 631330^2 + 529872^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1303918944 + ... + 1303919464.

It is a 1-persistent number, because it is pandigital, but 2⋅679341905284 = 1358683810568 is not.

Almost surely, 2^679341905284 is an apocalyptic number.

679341905284 is the 824222-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679341905284

679341905284 is an abundant number, since it is smaller than the sum of its proper divisors (718634126987).

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

679341905284 is an equidigital number, since it uses as much as digits as its factorization.

679341905284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 679341905284 in words is "six hundred seventy-nine billion, three hundred forty-one million, nine hundred five thousand, two hundred eighty-four".