33401871373 has 18 divisors (see below), whose sum is σ = 36304278206. Its totient is φ = 30549652032.

The previous prime is 33401871341. The next prime is 33401871409. The reversal of 33401871373 is 37317810433.

It can be written as a sum of positive squares in 9 ways, for example, as 6144521769 + 27257349604 = 78387^2 + 165098^2 .

It is not a de Polignac number, because 33401871373 - 2⁵ = 33401871341 is a prime.

It is a super-2 number, since 2×33401871373² (a number of 22 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 (33401871073) 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 17 ways as a sum of consecutive naturals, for example, 113999415 + ... + 113999707.

Almost surely, 2^33401871373 is an apocalyptic number.

It is an amenable number.

33401871373 is a deficient number, since it is larger than the sum of its proper divisors (2902406833).

33401871373 is an frugal number, since it uses more digits than its factorization.

33401871373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 33401871373 in words is "thirty-three billion, four hundred one million, eight hundred seventy-one thousand, three hundred seventy-three".