640046440425133 has 8 divisors (see below), whose sum is σ = 737241344202752. Its totient is φ = 544291461148176.

The previous prime is 640046440425089. The next prime is 640046440425173. The reversal of 640046440425133 is 331524044640046.

640046440425133 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 de Polignac number, because none of the positive numbers 2^k-640046440425133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640046440425173) 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, 359981124210 + ... + 359981125987.

It is an arithmetic number, because the mean of its divisors is an integer number (92155168025344).

Almost surely, 2^{640046440425133} is an apocalyptic number.

It is an amenable number.

640046440425133 is a deficient number, since it is larger than the sum of its proper divisors (97194903777619).

640046440425133 is a wasteful number, since it uses less digits than its factorization.

640046440425133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719962250331.

The product of its (nonzero) digits is 3317760, while the sum is 46.

The spelling of 640046440425133 in words is "six hundred forty trillion, forty-six billion, four hundred forty million, four hundred twenty-five thousand, one hundred thirty-three".