30385373085 has 24 divisors (see below), whose sum is σ = 52847757144. Its totient is φ = 16150216320.

The previous prime is 30385373047. The next prime is 30385373087. The reversal of 30385373085 is 58037358303.

It is a happy number.

30385373085 is a `hidden beast` number, since 3 + 0 + 3 + 8 + 537 + 30 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13745921049 + 16639452036 = 117243^2 + 128994^2 .

It is not a de Polignac number, because 30385373085 - 2²¹ = 30383275933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 30385373085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30385373087) 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 23 ways as a sum of consecutive naturals, for example, 1139086 + ... + 1165455.

It is an arithmetic number, because the mean of its divisors is an integer number (2201989881).

Almost surely, 2^30385373085 is an apocalyptic number.

It is an amenable number.

30385373085 is a deficient number, since it is larger than the sum of its proper divisors (22462384059).

30385373085 is a wasteful number, since it uses less digits than its factorization.

30385373085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304845 (or 2304842 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 30385373085 in words is "thirty billion, three hundred eighty-five million, three hundred seventy-three thousand, eighty-five".