30420987597885 has 16 divisors (see below), whose sum is σ = 51235347533760. Its totient is φ = 15370604259840.

The previous prime is 30420987597881. The next prime is 30420987597967. The reversal of 30420987597885 is 58879578902403.

It is not a de Polignac number, because 30420987597885 - 2² = 30420987597881 is a prime.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53370153396 + ... + 53370153965.

It is an arithmetic number, because the mean of its divisors is an integer number (3202209220860).

Almost surely, 2^{30420987597885} is an apocalyptic number.

It is an amenable number.

30420987597885 is a deficient number, since it is larger than the sum of its proper divisors (20814359935875).

30420987597885 is a wasteful number, since it uses less digits than its factorization.

30420987597885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106740307388.

The product of its (nonzero) digits is 1219276800, while the sum is 75.

The spelling of 30420987597885 in words is "thirty trillion, four hundred twenty billion, nine hundred eighty-seven million, five hundred ninety-seven thousand, eight hundred eighty-five".