43506272061 has 48 divisors (see below), whose sum is σ = 75714183168. Its totient is φ = 23546829600.

The previous prime is 43506272053. The next prime is 43506272101. The reversal of 43506272061 is 16027260534.

43506272061 is a `hidden beast` number, since 4 + 3 + 5 + 0 + 627 + 20 + 6 + 1 = 666.

It is not a de Polignac number, because 43506272061 - 2³ = 43506272053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43506276061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145195 + ... + 328776.

It is an arithmetic number, because the mean of its divisors is an integer number (1577378816).

Almost surely, 2^43506272061 is an apocalyptic number.

It is an amenable number.

43506272061 is a deficient number, since it is larger than the sum of its proper divisors (32207911107).

43506272061 is a wasteful number, since it uses less digits than its factorization.

43506272061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474062 (or 474059 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 43506272061 in words is "forty-three billion, five hundred six million, two hundred seventy-two thousand, sixty-one".