43578120453 has 24 divisors (see below), whose sum is σ = 71147956320. Its totient is φ = 23591161440.

The previous prime is 43578120407. The next prime is 43578120479. The reversal of 43578120453 is 35402187534.

It is not a de Polignac number, because 43578120453 - 2⁸ = 43578120197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43578120653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7798518 + ... + 7804103.

It is an arithmetic number, because the mean of its divisors is an integer number (2964498180).

Almost surely, 2^43578120453 is an apocalyptic number.

It is an amenable number.

43578120453 is a deficient number, since it is larger than the sum of its proper divisors (27569835867).

43578120453 is a wasteful number, since it uses less digits than its factorization.

43578120453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15602657 (or 15602650 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 43578120453 in words is "forty-three billion, five hundred seventy-eight million, one hundred twenty thousand, four hundred fifty-three".