30897064145 has 32 divisors (see below), whose sum is σ = 40151808000. Its totient is φ = 22753995264.

The previous prime is 30897064139. The next prime is 30897064199. The reversal of 30897064145 is 54146079803.

It is a cyclic number.

It is not a de Polignac number, because 30897064145 - 2¹⁴ = 30897047761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30897064145.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1029056 + ... + 1058654.

It is an arithmetic number, because the mean of its divisors is an integer number (1254744000).

Almost surely, 2^30897064145 is an apocalyptic number.

It is an amenable number.

30897064145 is a deficient number, since it is larger than the sum of its proper divisors (9254743855).

30897064145 is a wasteful number, since it uses less digits than its factorization.

30897064145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29969.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 30897064145 in words is "thirty billion, eight hundred ninety-seven million, sixty-four thousand, one hundred forty-five".