640174475033 has 8 divisors (see below), whose sum is σ = 651875633568. Its totient is φ = 628579209664.

The previous prime is 640174475023. The next prime is 640174475041. The reversal of 640174475033 is 330574471046.

It is a happy number.

640174475033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 640174475033 - 2⁸ = 640174474777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (640174475023) 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, 26461091 + ... + 26485272.

It is an arithmetic number, because the mean of its divisors is an integer number (81484454196).

Almost surely, 2^640174475033 is an apocalyptic number.

It is an amenable number.

640174475033 is a deficient number, since it is larger than the sum of its proper divisors (11701158535).

640174475033 is a wasteful number, since it uses less digits than its factorization.

640174475033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52946583.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 640174475033 in words is "six hundred forty billion, one hundred seventy-four million, four hundred seventy-five thousand, thirty-three".