30690866815 has 16 divisors (see below), whose sum is σ = 42623124480. Its totient is φ = 20778769440.

The previous prime is 30690866803. The next prime is 30690866851. The reversal of 30690866815 is 51866809603.

It is not a de Polignac number, because 30690866815 - 2⁹ = 30690866303 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5547121 + ... + 5552650.

It is an arithmetic number, because the mean of its divisors is an integer number (2663945280).

Almost surely, 2^30690866815 is an apocalyptic number.

30690866815 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30690866815 is a deficient number, since it is larger than the sum of its proper divisors (11932257665).

30690866815 is a wasteful number, since it uses less digits than its factorization.

30690866815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11099862.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 30690866815 in words is "thirty billion, six hundred ninety million, eight hundred sixty-six thousand, eight hundred fifteen".