30494938385 has 16 divisors (see below), whose sum is σ = 39691551312. Its totient is φ = 22400870400.

The previous prime is 30494938381. The next prime is 30494938427. The reversal of 30494938385 is 58383949403.

It is a Cunningham number, because it is equal to 174628²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 6753059329 + 23741879056 = 82177^2 + 154084^2 .

It is not a de Polignac number, because 30494938385 - 2² = 30494938381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30494938385.

It is not an unprimeable number, because it can be changed into a prime (30494938381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4371686 + ... + 4378655.

It is an arithmetic number, because the mean of its divisors is an integer number (2480721957).

Almost surely, 2^30494938385 is an apocalyptic number.

It is an amenable number.

30494938385 is a deficient number, since it is larger than the sum of its proper divisors (9196612927).

30494938385 is a wasteful number, since it uses less digits than its factorization.

30494938385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8750404.

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 30494938385 in words is "thirty billion, four hundred ninety-four million, nine hundred thirty-eight thousand, three hundred eighty-five".