30697886385 has 32 divisors (see below), whose sum is σ = 56049002880. Its totient is φ = 15929711424.

The previous prime is 30697886383. The next prime is 30697886419. The reversal of 30697886385 is 58368879603.

It is not a de Polignac number, because 30697886385 - 2¹ = 30697886383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30697886383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3067867 + ... + 3077856.

It is an arithmetic number, because the mean of its divisors is an integer number (1751531340).

Almost surely, 2^30697886385 is an apocalyptic number.

It is an amenable number.

30697886385 is a deficient number, since it is larger than the sum of its proper divisors (25351116495).

30697886385 is a wasteful number, since it uses less digits than its factorization.

30697886385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6145774 (or 6145768 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 30697886385 in words is "thirty billion, six hundred ninety-seven million, eight hundred eighty-six thousand, three hundred eighty-five".