30640926766 has 8 divisors (see below), whose sum is σ = 45981097704. Its totient is φ = 15313894200.

The previous prime is 30640926763. The next prime is 30640926773. The reversal of 30640926766 is 66762904603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30640926763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3278760 + ... + 3288091.

It is an arithmetic number, because the mean of its divisors is an integer number (5747637213).

Almost surely, 2^30640926766 is an apocalyptic number.

30640926766 is a deficient number, since it is larger than the sum of its proper divisors (15340170938).

30640926766 is a wasteful number, since it uses less digits than its factorization.

30640926766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569186.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The spelling of 30640926766 in words is "thirty billion, six hundred forty million, nine hundred twenty-six thousand, seven hundred sixty-six".