30315891272 has 32 divisors (see below), whose sum is σ = 57187166400. Its totient is φ = 15066072000.

The previous prime is 30315891271. The next prime is 30315891289. The reversal of 30315891272 is 27219851303.

It is not an unprimeable number, because it can be changed into a prime (30315891271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3382397 + ... + 3391347.

It is an arithmetic number, because the mean of its divisors is an integer number (1787098950).

Almost surely, 2^30315891272 is an apocalyptic number.

It is an amenable number.

30315891272 is a deficient number, since it is larger than the sum of its proper divisors (26871275128).

30315891272 is a wasteful number, since it uses less digits than its factorization.

30315891272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11477 (or 11473 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 30315891272 in words is "thirty billion, three hundred fifteen million, eight hundred ninety-one thousand, two hundred seventy-two".