30142333872 has 80 divisors (see below), whose sum is σ = 98879623680. Its totient is φ = 8612094528.

The previous prime is 30142333861. The next prime is 30142333883. The reversal of 30142333872 is 27833324103.

30142333872 is a `hidden beast` number, since 30 + 14 + 233 + 387 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (30142333861) and next prime (30142333883).

It is a super-2 number, since 2×30142333872² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 4980828 + ... + 4986875.

It is an arithmetic number, because the mean of its divisors is an integer number (1235995296).

Almost surely, 2^30142333872 is an apocalyptic number.

It is an amenable number.

30142333872 is an abundant number, since it is smaller than the sum of its proper divisors (68737289808).

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

30142333872 is a wasteful number, since it uses less digits than its factorization.

30142333872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9967727 (or 9967715 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

Adding to 30142333872 its reverse (27833324103), we get a palindrome (57975657975).

The spelling of 30142333872 in words is "thirty billion, one hundred forty-two million, three hundred thirty-three thousand, eight hundred seventy-two".