30487863921 has 8 divisors (see below), whose sum is σ = 40782898464. Its totient is φ = 20259036000.

The previous prime is 30487863907. The next prime is 30487863949. The reversal of 30487863921 is 12936878403.

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

It is not a de Polignac number, because 30487863921 - 2³⁰ = 29414122097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30487863521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16550580 + ... + 16552421.

It is an arithmetic number, because the mean of its divisors is an integer number (5097862308).

Almost surely, 2^30487863921 is an apocalyptic number.

It is an amenable number.

30487863921 is a deficient number, since it is larger than the sum of its proper divisors (10295034543).

30487863921 is a wasteful number, since it uses less digits than its factorization.

30487863921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33103311.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 30487863921 in words is "thirty billion, four hundred eighty-seven million, eight hundred sixty-three thousand, nine hundred twenty-one".