43653528812 has 48 divisors (see below), whose sum is σ = 85179276000. Its totient is φ = 19453722624.

The previous prime is 43653528803. The next prime is 43653528817. The reversal of 43653528812 is 21882535634.

It is a super-2 number, since 2×43653528812² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43653528817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4140764 + ... + 4151292.

It is an arithmetic number, because the mean of its divisors is an integer number (1774568250).

Almost surely, 2^43653528812 is an apocalyptic number.

It is an amenable number.

43653528812 is a deficient number, since it is larger than the sum of its proper divisors (41525747188).

43653528812 is a wasteful number, since it uses less digits than its factorization.

43653528812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13778 (or 13776 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 47.

The spelling of 43653528812 in words is "forty-three billion, six hundred fifty-three million, five hundred twenty-eight thousand, eight hundred twelve".