33545232138 has 32 divisors (see below), whose sum is σ = 73199347200. Its totient is φ = 10163867760.

The previous prime is 33545232103. The next prime is 33545232139. The reversal of 33545232138 is 83123254533.

It is a super-2 number, since 2×33545232138² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33545232096 and 33545232105.

It is not an unprimeable number, because it can be changed into a prime (33545232139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537981 + ... + 597087.

It is an arithmetic number, because the mean of its divisors is an integer number (2287479600).

Almost surely, 2^33545232138 is an apocalyptic number.

33545232138 is an abundant number, since it is smaller than the sum of its proper divisors (39654115062).

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

33545232138 is a wasteful number, since it uses less digits than its factorization.

33545232138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67722.

The product of its digits is 259200, while the sum is 39.

The spelling of 33545232138 in words is "thirty-three billion, five hundred forty-five million, two hundred thirty-two thousand, one hundred thirty-eight".