33390734789906 has 32 divisors (see below), whose sum is σ = 56345293751040. Its totient is φ = 14725019605824.

The previous prime is 33390734789899. The next prime is 33390734789947. The reversal of 33390734789906 is 60998743709333.

It is a super-2 number, since 2×33390734789906² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33390734789906.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 29829845 + ... + 30928968.

It is an arithmetic number, because the mean of its divisors is an integer number (1760790429720).

Almost surely, 2^{33390734789906} is an apocalyptic number.

33390734789906 is a deficient number, since it is larger than the sum of its proper divisors (22954558961134).

33390734789906 is a wasteful number, since it uses less digits than its factorization.

33390734789906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60759770.

The product of its (nonzero) digits is 555532992, while the sum is 71.

The spelling of 33390734789906 in words is "thirty-three trillion, three hundred ninety billion, seven hundred thirty-four million, seven hundred eighty-nine thousand, nine hundred six".