133993439485 has 4 divisors (see below), whose sum is σ = 160792127388. Its totient is φ = 107194751584.

The previous prime is 133993439477. The next prime is 133993439497. The reversal of 133993439485 is 584934399331.

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 40698624121 + 93294815364 = 201739^2 + 305442^2 .

It is a cyclic number.

It is not a de Polignac number, because 133993439485 - 2³ = 133993439477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13399343944 + ... + 13399343953.

It is an arithmetic number, because the mean of its divisors is an integer number (40198031847).

Almost surely, 2^133993439485 is an apocalyptic number.

It is an amenable number.

133993439485 is a deficient number, since it is larger than the sum of its proper divisors (26798687903).

133993439485 is an equidigital number, since it uses as much as digits as its factorization.

133993439485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26798687902.

The product of its digits is 37791360, while the sum is 61.

The spelling of 133993439485 in words is "one hundred thirty-three billion, nine hundred ninety-three million, four hundred thirty-nine thousand, four hundred eighty-five".