8481388953601 has 4 divisors (see below), whose sum is σ = 8482699231812. Its totient is φ = 8480078675392.

The previous prime is 8481388953577. The next prime is 8481388953613. The reversal of 8481388953601 is 1063598831848.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 975652038001 + 7505736915600 = 987751^2 + 2739660^2 .

It is a cyclic number.

It is not a de Polignac number, because 8481388953601 - 2³¹ = 8479241469953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8481388953641) 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, 655129396 + ... + 655142341.

It is an arithmetic number, because the mean of its divisors is an integer number (2120674807953).

Almost surely, 2^{8481388953601} is an apocalyptic number.

It is an amenable number.

8481388953601 is a deficient number, since it is larger than the sum of its proper divisors (1310278211).

8481388953601 is a wasteful number, since it uses less digits than its factorization.

8481388953601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310278210.

The product of its (nonzero) digits is 39813120, while the sum is 64.

The spelling of 8481388953601 in words is "eight trillion, four hundred eighty-one billion, three hundred eighty-eight million, nine hundred fifty-three thousand, six hundred one".