43845000052 has 48 divisors (see below), whose sum is σ = 90993272832. Its totient is φ = 18095182560.

The previous prime is 43845000013. The next prime is 43845000097. The reversal of 43845000052 is 25000054834.

It is a junction number, because it is equal to n+sod(n) for n = 43844999978 and 43845000023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170968 + ... + 341935.

It is an arithmetic number, because the mean of its divisors is an integer number (1895693184).

Almost surely, 2^43845000052 is an apocalyptic number.

43845000052 is the 170968-th pentagonal number.

It is an amenable number.

43845000052 is an abundant number, since it is smaller than the sum of its proper divisors (47148272780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43845000052 is a wasteful number, since it uses less digits than its factorization.

43845000052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513028 (or 513026 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 43845000052 its reverse (25000054834), we get a palindrome (68845054886).

The spelling of 43845000052 in words is "forty-three billion, eight hundred forty-five million, fifty-two", and thus it is an aban number.