33873061720 has 32 divisors (see below), whose sum is σ = 76219632720. Its totient is φ = 13548292480.

The previous prime is 33873061681. The next prime is 33873061721. The reversal of 33873061720 is 2716037833.

It is a happy number.

It is a super-2 number, since 2×33873061720² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33873061721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095675 + ... + 1126165.

Almost surely, 2^33873061720 is an apocalyptic number.

It is an amenable number.

33873061720 is an abundant number, since it is smaller than the sum of its proper divisors (42346571000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33873061720 is a wasteful number, since it uses less digits than its factorization.

33873061720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58275 (or 58271 counting only the distinct ones).

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

The spelling of 33873061720 in words is "thirty-three billion, eight hundred seventy-three million, sixty-one thousand, seven hundred twenty".