33947489977 has 8 divisors (see below), whose sum is σ = 34385815040. Its totient is φ = 33509380320.

The previous prime is 33947489963. The next prime is 33947489993. The reversal of 33947489977 is 77998474933.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33947489977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33947489077) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 276352 + ... + 379822.

It is an arithmetic number, because the mean of its divisors is an integer number (4298226880).

Almost surely, 2^33947489977 is an apocalyptic number.

It is an amenable number.

33947489977 is a deficient number, since it is larger than the sum of its proper divisors (438325063).

33947489977 is a wasteful number, since it uses less digits than its factorization.

33947489977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107703.

The product of its digits is 288054144, while the sum is 70.

The spelling of 33947489977 in words is "thirty-three billion, nine hundred forty-seven million, four hundred eighty-nine thousand, nine hundred seventy-seven".