33378786053 has 4 divisors (see below), whose sum is σ = 34192902828. Its totient is φ = 32564669280.

The previous prime is 33378786029. The next prime is 33378786097. The reversal of 33378786053 is 35068787333.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3419676484 + 29959109569 = 58478^2 + 173087^2 .

It is a cyclic number.

It is not a de Polignac number, because 33378786053 - 2¹² = 33378781957 is a prime.

It is a super-2 number, since 2×33378786053² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33378785986 and 33378786004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33378716053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407058326 + ... + 407058407.

It is an arithmetic number, because the mean of its divisors is an integer number (8548225707).

Almost surely, 2^33378786053 is an apocalyptic number.

It is an amenable number.

33378786053 is a deficient number, since it is larger than the sum of its proper divisors (814116775).

33378786053 is an equidigital number, since it uses as much as digits as its factorization.

33378786053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814116774.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 33378786053 in words is "thirty-three billion, three hundred seventy-eight million, seven hundred eighty-six thousand, fifty-three".