133428954869 has 4 divisors (see below), whose sum is σ = 152490234144. Its totient is φ = 114367675596.

The previous prime is 133428954859. The next prime is 133428954877. The reversal of 133428954869 is 968459824331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133428954869 is a prime.

It is a super-2 number, since 2×133428954869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133428954859) 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, 9530639627 + ... + 9530639640.

It is an arithmetic number, because the mean of its divisors is an integer number (38122558536).

Almost surely, 2^133428954869 is an apocalyptic number.

It is an amenable number.

133428954869 is a deficient number, since it is larger than the sum of its proper divisors (19061279275).

133428954869 is an equidigital number, since it uses as much as digits as its factorization.

133428954869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19061279274.

The product of its digits is 44789760, while the sum is 62.

The spelling of 133428954869 in words is "one hundred thirty-three billion, four hundred twenty-eight million, nine hundred fifty-four thousand, eight hundred sixty-nine".