30438770317 has 16 divisors (see below), whose sum is σ = 34647402240. Its totient is φ = 26562981888.

The previous prime is 30438770291. The next prime is 30438770333. The reversal of 30438770317 is 71307783403.

It is a cyclic number.

It is not a de Polignac number, because 30438770317 - 2³¹ = 28291286669 is a prime.

It is a super-2 number, since 2×30438770317² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30438770347) 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, 987348 + ... + 1017709.

It is an arithmetic number, because the mean of its divisors is an integer number (2165462640).

Almost surely, 2^30438770317 is an apocalyptic number.

It is an amenable number.

30438770317 is a deficient number, since it is larger than the sum of its proper divisors (4208631923).

30438770317 is a wasteful number, since it uses less digits than its factorization.

30438770317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005140.

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 30438770317 in words is "thirty billion, four hundred thirty-eight million, seven hundred seventy thousand, three hundred seventeen".