847870798401 has 135 divisors (see below), whose sum is σ = 1422928721137. Its totient is φ = 502756254000.

The previous prime is 847870798373. The next prime is 847870798417. The reversal of 847870798401 is 104897078748.

The square root of 847870798401 is 920799.

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

847870798401 is a `hidden beast` number, since 8 + 4 + 78 + 70 + 7 + 98 + 401 = 666.

It is not a de Polignac number, because 847870798401 - 2²⁷ = 847736580673 is a prime.

It is a super-2 number, since 2×847870798401² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (847870798421) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 6472296106 + ... + 6472296236.

Almost surely, 2^847870798401 is an apocalyptic number.

847870798401 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

847870798401 is the 920799-th square number.

847870798401 is the 460400-th centered octagonal number.

It is an amenable number.

847870798401 is a deficient number, since it is larger than the sum of its proper divisors (575057922736).

847870798401 is an equidigital number, since it uses as much as digits as its factorization.

847870798401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 63.

The spelling of 847870798401 in words is "eight hundred forty-seven billion, eight hundred seventy million, seven hundred ninety-eight thousand, four hundred one".