305849485648 has 80 divisors (see below), whose sum is σ = 695547990016. Its totient is φ = 127557037440.

The previous prime is 305849485607. The next prime is 305849485703. The reversal of 305849485648 is 846584948503.

It is a super-2 number, since 2×305849485648² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305849485648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187965 + ... + 1422307.

Almost surely, 2^305849485648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305849485648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347773995008).

305849485648 is an abundant number, since it is smaller than the sum of its proper divisors (389698504368).

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

305849485648 is a wasteful number, since it uses less digits than its factorization.

305849485648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234672 (or 234666 counting only the distinct ones).

The product of its (nonzero) digits is 132710400, while the sum is 64.

The spelling of 305849485648 in words is "three hundred five billion, eight hundred forty-nine million, four hundred eighty-five thousand, six hundred forty-eight".