30420987597884 has 48 divisors (see below), whose sum is σ = 57476124877248. Its totient is φ = 14005168040448.

The previous prime is 30420987597881. The next prime is 30420987597967. The reversal of 30420987597884 is 48879578902403.

It is a super-2 number, since 2×30420987597884² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420987597881) 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, 34316594 + ... + 35191910.

It is an arithmetic number, because the mean of its divisors is an integer number (1197419268276).

Almost surely, 2^{30420987597884} is an apocalyptic number.

It is an amenable number.

30420987597884 is a deficient number, since it is larger than the sum of its proper divisors (27055137279364).

30420987597884 is a wasteful number, since it uses less digits than its factorization.

30420987597884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877014 (or 877012 counting only the distinct ones).

The product of its (nonzero) digits is 975421440, while the sum is 74.

The spelling of 30420987597884 in words is "thirty trillion, four hundred twenty billion, nine hundred eighty-seven million, five hundred ninety-seven thousand, eight hundred eighty-four".