33139383736 has 8 divisors (see below), whose sum is σ = 62136344520. Its totient is φ = 16569691864.

The previous prime is 33139383713. The next prime is 33139383763. The reversal of 33139383736 is 63738393133.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×33139383736² (a number of 22 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 33139383736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071211476 + ... + 2071211491.

It is an arithmetic number, because the mean of its divisors is an integer number (7767043065).

Almost surely, 2^33139383736 is an apocalyptic number.

It is an amenable number.

33139383736 is a deficient number, since it is larger than the sum of its proper divisors (28996960784).

33139383736 is a wasteful number, since it uses less digits than its factorization.

33139383736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142422973 (or 4142422969 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 49.

The spelling of 33139383736 in words is "thirty-three billion, one hundred thirty-nine million, three hundred eighty-three thousand, seven hundred thirty-six".