30421705765 has 16 divisors (see below), whose sum is σ = 39983461056. Its totient is φ = 22036720000.

The previous prime is 30421705739. The next prime is 30421705781. The reversal of 30421705765 is 56750712403.

It is not a de Polignac number, because 30421705765 - 2⁷ = 30421705637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088032 + ... + 1115641.

It is an arithmetic number, because the mean of its divisors is an integer number (2498966316).

Almost surely, 2^30421705765 is an apocalyptic number.

It is an amenable number.

30421705765 is a deficient number, since it is larger than the sum of its proper divisors (9561755291).

30421705765 is a wasteful number, since it uses less digits than its factorization.

30421705765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203940.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 30421705765 in words is "thirty billion, four hundred twenty-one million, seven hundred five thousand, seven hundred sixty-five".