8445953538 has 32 divisors (see below), whose sum is σ = 20475040320. Its totient is φ = 2559379680.

The previous prime is 8445953521. The next prime is 8445953543. The reversal of 8445953538 is 8353595448.

8445953538 is a `hidden beast` number, since 8 + 4 + 4 + 59 + 53 + 538 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 7108795 + ... + 7109982.

It is an arithmetic number, because the mean of its divisors is an integer number (639845010).

Almost surely, 2^8445953538 is an apocalyptic number.

8445953538 is an abundant number, since it is smaller than the sum of its proper divisors (12029086782).

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

8445953538 is a wasteful number, since it uses less digits than its factorization.

8445953538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14218799 (or 14218793 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The square root of 8445953538 is about 91901.8690669564. The cubic root of 8445953538 is about 2036.4928798057.

The spelling of 8445953538 in words is "eight billion, four hundred forty-five million, nine hundred fifty-three thousand, five hundred thirty-eight".