33642640504 has 32 divisors (see below), whose sum is σ = 68822576640. Its totient is φ = 15290312800.

The previous prime is 33642640481. The next prime is 33642640513. The reversal of 33642640504 is 40504624633.

It is a happy number.

It is a super-2 number, since 2×33642640504² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987417 + ... + 1020919.

It is an arithmetic number, because the mean of its divisors is an integer number (2150705520).

Almost surely, 2^33642640504 is an apocalyptic number.

It is an amenable number.

33642640504 is an abundant number, since it is smaller than the sum of its proper divisors (35179936136).

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

33642640504 is a wasteful number, since it uses less digits than its factorization.

33642640504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44931 (or 44927 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 33642640504 in words is "thirty-three billion, six hundred forty-two million, six hundred forty thousand, five hundred four".