33838961155949 has 4 divisors (see below), whose sum is σ = 33839512187964. Its totient is φ = 33838410123936.

The previous prime is 33838961155927. The next prime is 33838961155997. The reversal of 33838961155949 is 94955116983833.

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 7809761214025 + 26029199941924 = 2794595^2 + 5101882^2 .

It is a cyclic number.

It is not a de Polignac number, because 33838961155949 - 2⁸ = 33838961155693 is a prime.

It is a super-2 number, since 2×33838961155949² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33838061155949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275423882 + ... + 275546715.

It is an arithmetic number, because the mean of its divisors is an integer number (8459878046991).

Almost surely, 2^{33838961155949} is an apocalyptic number.

It is an amenable number.

33838961155949 is a deficient number, since it is larger than the sum of its proper divisors (551032015).

33838961155949 is an equidigital number, since it uses as much as digits as its factorization.

33838961155949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551032014.

The product of its digits is 755827200, while the sum is 74.

The spelling of 33838961155949 in words is "thirty-three trillion, eight hundred thirty-eight billion, nine hundred sixty-one million, one hundred fifty-five thousand, nine hundred forty-nine".