30993530697 has 6 divisors (see below), whose sum is σ = 44768433242. Its totient is φ = 20662353792.

The previous prime is 30993530651. The next prime is 30993530749. The reversal of 30993530697 is 79603539903.

It can be written as a sum of positive squares in only one way, i.e., 30923574201 + 69956496 = 175851^2 + 8364^2 .

It is not a de Polignac number, because 30993530697 - 2¹¹ = 30993528649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30993531697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1721862808 + ... + 1721862825.

Almost surely, 2^30993530697 is an apocalyptic number.

It is an amenable number.

30993530697 is a deficient number, since it is larger than the sum of its proper divisors (13774902545).

30993530697 is a wasteful number, since it uses less digits than its factorization.

30993530697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3443725639 (or 3443725636 counting only the distinct ones).

The product of its (nonzero) digits is 4133430, while the sum is 54.

The spelling of 30993530697 in words is "thirty billion, nine hundred ninety-three million, five hundred thirty thousand, six hundred ninety-seven".