43579720052 has 24 divisors (see below), whose sum is σ = 83300555520. Its totient is φ = 19784461760.

The previous prime is 43579720049. The next prime is 43579720073. The reversal of 43579720052 is 25002797534.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 43579719985 and 43579720012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576548 + ... + 647739.

It is an arithmetic number, because the mean of its divisors is an integer number (3470856480).

Almost surely, 2^43579720052 is an apocalyptic number.

It is an amenable number.

43579720052 is a deficient number, since it is larger than the sum of its proper divisors (39720835468).

43579720052 is a wasteful number, since it uses less digits than its factorization.

43579720052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225111 (or 1225109 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 43579720052 in words is "forty-three billion, five hundred seventy-nine million, seven hundred twenty thousand, fifty-two".