30930613618 has 4 divisors (see below), whose sum is σ = 46395920430. Its totient is φ = 15465306808.

The previous prime is 30930613613. The next prime is 30930613619. The reversal of 30930613618 is 81631603903.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30473637489 + 456976129 = 174567^2 + 21377^2 .

It is not an unprimeable number, because it can be changed into a prime (30930613613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7732653403 + ... + 7732653406.

Almost surely, 2^30930613618 is an apocalyptic number.

30930613618 is a deficient number, since it is larger than the sum of its proper divisors (15465306812).

30930613618 is a wasteful number, since it uses less digits than its factorization.

30930613618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15465306811.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 30930613618 in words is "thirty billion, nine hundred thirty million, six hundred thirteen thousand, six hundred eighteen".