30587993980 has 48 divisors (see below), whose sum is σ = 69443045280. Its totient is φ = 11277957888.

The previous prime is 30587993929. The next prime is 30587993981. The reversal of 30587993980 is 8939978503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30587993981) 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, 1073707 + ... + 1101826.

It is an arithmetic number, because the mean of its divisors is an integer number (1446730110).

Almost surely, 2^30587993980 is an apocalyptic number.

It is an amenable number.

30587993980 is an abundant number, since it is smaller than the sum of its proper divisors (38855051300).

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

30587993980 is a wasteful number, since it uses less digits than its factorization.

30587993980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175598 (or 2175596 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 30587993980 in words is "thirty billion, five hundred eighty-seven million, nine hundred ninety-three thousand, nine hundred eighty".