26825198656 has 63 divisors (see below), whose sum is σ = 54305268199. Its totient is φ = 13147269248.

The previous prime is 26825198651. The next prime is 26825198693. The reversal of 26825198656 is 65689152862.

It is a happy number.

The square root of 26825198656 is 163784.

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 26825198656.

It is not an unprimeable number, because it can be changed into a prime (26825198651) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 77305875 + ... + 77306221.

Almost surely, 2^26825198656 is an apocalyptic number.

26825198656 is the 163784-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26825198656

26825198656 is an abundant number, since it is smaller than the sum of its proper divisors (27480069543).

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

26825198656 is an frugal number, since it uses more digits than its factorization.

26825198656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 408 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 58.

The spelling of 26825198656 in words is "twenty-six billion, eight hundred twenty-five million, one hundred ninety-eight thousand, six hundred fifty-six".