33556484649 has 32 divisors (see below), whose sum is σ = 47407360000. Its totient is φ = 21054173184.

The previous prime is 33556484641. The next prime is 33556484693. The reversal of 33556484649 is 94648465533.

It is not a de Polignac number, because 33556484649 - 2³ = 33556484641 is a prime.

It is a super-2 number, since 2×33556484649² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33556484641) 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 31 ways as a sum of consecutive naturals, for example, 8720844 + ... + 8724690.

It is an arithmetic number, because the mean of its divisors is an integer number (1481480000).

Almost surely, 2^33556484649 is an apocalyptic number.

It is an amenable number.

33556484649 is a deficient number, since it is larger than the sum of its proper divisors (13850875351).

33556484649 is a wasteful number, since it uses less digits than its factorization.

33556484649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4837.

The product of its digits is 37324800, while the sum is 57.

The spelling of 33556484649 in words is "thirty-three billion, five hundred fifty-six million, four hundred eighty-four thousand, six hundred forty-nine".