30128243854 has 8 divisors (see below), whose sum is σ = 46650184128. Its totient is φ = 14578182480.

The previous prime is 30128243833. The next prime is 30128243879. The reversal of 30128243854 is 45834282103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30128243854² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242969647 + ... + 242969770.

It is an arithmetic number, because the mean of its divisors is an integer number (5831273016).

Almost surely, 2^30128243854 is an apocalyptic number.

30128243854 is a deficient number, since it is larger than the sum of its proper divisors (16521940274).

30128243854 is a wasteful number, since it uses less digits than its factorization.

30128243854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485939450.

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 30128243854 in words is "thirty billion, one hundred twenty-eight million, two hundred forty-three thousand, eight hundred fifty-four".