208953093481 has 16 divisors (see below), whose sum is σ = 233489222208. Its totient is φ = 185349427200.

The previous prime is 208953093457. The next prime is 208953093487. The reversal of 208953093481 is 184390359802.

It is a cyclic number.

It is not a de Polignac number, because 208953093481 - 2⁵ = 208953093449 is a prime.

It is a super-2 number, since 2×208953093481² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (208953093487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236041 + ... + 688201.

It is an arithmetic number, because the mean of its divisors is an integer number (14593076388).

Almost surely, 2^208953093481 is an apocalyptic number.

It is an amenable number.

208953093481 is a deficient number, since it is larger than the sum of its proper divisors (24536128727).

208953093481 is a wasteful number, since it uses less digits than its factorization.

208953093481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453192.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 208953093481 in words is "two hundred eight billion, nine hundred fifty-three million, ninety-three thousand, four hundred eighty-one".