30668365861 has 32 divisors (see below), whose sum is σ = 38005909760. Its totient is φ = 24157357056.

The previous prime is 30668365817. The next prime is 30668365879. The reversal of 30668365861 is 16856386603.

It is not a de Polignac number, because 30668365861 - 2⁷ = 30668365733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30668365799 and 30668365808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30668365811) 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, 1649131 + ... + 1667623.

It is an arithmetic number, because the mean of its divisors is an integer number (1187684680).

Almost surely, 2^30668365861 is an apocalyptic number.

It is an amenable number.

30668365861 is a deficient number, since it is larger than the sum of its proper divisors (7337543899).

30668365861 is a wasteful number, since it uses less digits than its factorization.

30668365861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18893.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 30668365861 in words is "thirty billion, six hundred sixty-eight million, three hundred sixty-five thousand, eight hundred sixty-one".