8438550061 has 4 divisors (see below), whose sum is σ = 8445807072. Its totient is φ = 8431293052.

The previous prime is 8438550053. The next prime is 8438550067. The reversal of 8438550061 is 1600558348.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8438550061 - 2³ = 8438550053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8438549996 and 8438550023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438550067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3626761 + ... + 3629086.

It is an arithmetic number, because the mean of its divisors is an integer number (2111451768).

Almost surely, 2^8438550061 is an apocalyptic number.

It is an amenable number.

8438550061 is a deficient number, since it is larger than the sum of its proper divisors (7257011).

8438550061 is a wasteful number, since it uses less digits than its factorization.

8438550061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7257010.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 8438550061 is about 91861.5809846532. The cubic root of 8438550061 is about 2035.8976623971.

The spelling of 8438550061 in words is "eight billion, four hundred thirty-eight million, five hundred fifty thousand, sixty-one".