305052780000 has 120 divisors (see below), whose sum is σ = 1000634325768. Its totient is φ = 81347392000.

The previous prime is 305052779963. The next prime is 305052780041. The reversal of 305052780000 is 87250503.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 305052780000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2482107 + ... + 2602106.

Almost surely, 2^305052780000 is an apocalyptic number.

305052780000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305052780000 is an abundant number, since it is smaller than the sum of its proper divisors (695581545768).

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

305052780000 is an equidigital number, since it uses as much as digits as its factorization.

305052780000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084246 (or 5084223 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 305052780000 in words is "three hundred five billion, fifty-two million, seven hundred eighty thousand".