30855043488 has 24 divisors (see below), whose sum is σ = 80994489408. Its totient is φ = 10285014464.

The previous prime is 30855043481. The next prime is 30855043507. The reversal of 30855043488 is 88434055803.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×30855043488² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (30855043481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160703256 + ... + 160703447.

It is an arithmetic number, because the mean of its divisors is an integer number (3374770392).

Almost surely, 2^30855043488 is an apocalyptic number.

It is an amenable number.

30855043488 is an abundant number, since it is smaller than the sum of its proper divisors (50139445920).

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

30855043488 is a wasteful number, since it uses less digits than its factorization.

30855043488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321406716 (or 321406708 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 48.

The spelling of 30855043488 in words is "thirty billion, eight hundred fifty-five million, forty-three thousand, four hundred eighty-eight".