133445777889 has 16 divisors (see below), whose sum is σ = 185672530944. Its totient is φ = 85091806800.

The previous prime is 133445777887. The next prime is 133445777917. The reversal of 133445777889 is 988777544331.

It is not a de Polignac number, because 133445777889 - 2¹ = 133445777887 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (133445777887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2206524 + ... + 2266194.

It is an arithmetic number, because the mean of its divisors is an integer number (11604533184).

Almost surely, 2^133445777889 is an apocalyptic number.

It is an amenable number.

133445777889 is a deficient number, since it is larger than the sum of its proper divisors (52226753055).

133445777889 is a wasteful number, since it uses less digits than its factorization.

133445777889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92108.

The product of its digits is 142248960, while the sum is 66.

The spelling of 133445777889 in words is "one hundred thirty-three billion, four hundred forty-five million, seven hundred seventy-seven thousand, eight hundred eighty-nine".