33420427173 has 32 divisors (see below), whose sum is σ = 59045068800. Its totient is φ = 18267063408.

The previous prime is 33420427147. The next prime is 33420427213. The reversal of 33420427173 is 37172402433.

It is not a de Polignac number, because 33420427173 - 2¹⁸ = 33420165029 is a prime.

It is a super-2 number, since 2×33420427173² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33420427123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3839733 + ... + 3848426.

It is an arithmetic number, because the mean of its divisors is an integer number (1845158400).

Almost surely, 2^33420427173 is an apocalyptic number.

It is an amenable number.

33420427173 is a deficient number, since it is larger than the sum of its proper divisors (25624641627).

33420427173 is a wasteful number, since it uses less digits than its factorization.

33420427173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7688198 (or 7688192 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The spelling of 33420427173 in words is "thirty-three billion, four hundred twenty million, four hundred twenty-seven thousand, one hundred seventy-three".