133788279489 has 8 divisors (see below), whose sum is σ = 178392318720. Its totient is φ = 89188213296.

The previous prime is 133788279487. The next prime is 133788279503. The reversal of 133788279489 is 984972887331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133788279489 - 2¹ = 133788279487 is a prime.

It is a super-2 number, since 2×133788279489² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133788279487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913777 + ... + 1050030.

It is an arithmetic number, because the mean of its divisors is an integer number (22299039840).

Almost surely, 2^133788279489 is an apocalyptic number.

It is an amenable number.

133788279489 is a deficient number, since it is larger than the sum of its proper divisors (44604039231).

133788279489 is a wasteful number, since it uses less digits than its factorization.

133788279489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986519.

The product of its digits is 146313216, while the sum is 69.

The spelling of 133788279489 in words is "one hundred thirty-three billion, seven hundred eighty-eight million, two hundred seventy-nine thousand, four hundred eighty-nine".