43453640575 has 12 divisors (see below), whose sum is σ = 53959401288. Its totient is φ = 34713308000.

The previous prime is 43453640569. The next prime is 43453640579. The reversal of 43453640575 is 57504635434.

It is a happy number.

It is not a de Polignac number, because 43453640575 - 2³³ = 34863705983 is a prime.

It is a super-3 number, since 3×43453640575³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43453640579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1222237 + ... + 1257286.

It is an arithmetic number, because the mean of its divisors is an integer number (4496616774).

Almost surely, 2^43453640575 is an apocalyptic number.

43453640575 is a deficient number, since it is larger than the sum of its proper divisors (10505760713).

43453640575 is a wasteful number, since it uses less digits than its factorization.

43453640575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480234 (or 2480229 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 46.

The spelling of 43453640575 in words is "forty-three billion, four hundred fifty-three million, six hundred forty thousand, five hundred seventy-five".