33507873868 has 24 divisors (see below), whose sum is σ = 70957851552. Its totient is φ = 13515780864.

The previous prime is 33507873857. The next prime is 33507873869. The reversal of 33507873868 is 86837870533.

It is a super-2 number, since 2×33507873868² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (33507873869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35196871 + ... + 35197822.

It is an arithmetic number, because the mean of its divisors is an integer number (2956577148).

Almost surely, 2^33507873868 is an apocalyptic number.

It is an amenable number.

33507873868 is an abundant number, since it is smaller than the sum of its proper divisors (37449977684).

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

33507873868 is a wasteful number, since it uses less digits than its factorization.

33507873868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70394721 (or 70394719 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 33507873868 in words is "thirty-three billion, five hundred seven million, eight hundred seventy-three thousand, eight hundred sixty-eight".