30428602881 has 16 divisors (see below), whose sum is σ = 40768540800. Its totient is φ = 20187353088.

The previous prime is 30428602873. The next prime is 30428602903. The reversal of 30428602881 is 18820682403.

It is a happy number.

It is not a de Polignac number, because 30428602881 - 2³ = 30428602873 is a prime.

It is a super-2 number, since 2×30428602881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30428602801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805740 + ... + 842658.

It is an arithmetic number, because the mean of its divisors is an integer number (2548033800).

Almost surely, 2^30428602881 is an apocalyptic number.

It is an amenable number.

30428602881 is a deficient number, since it is larger than the sum of its proper divisors (10339937919).

30428602881 is a wasteful number, since it uses less digits than its factorization.

30428602881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38248.

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 30428602881 in words is "thirty billion, four hundred twenty-eight million, six hundred two thousand, eight hundred eighty-one".