133091862789 has 4 divisors (see below), whose sum is σ = 177455817056. Its totient is φ = 88727908524.

The previous prime is 133091862731. The next prime is 133091862793. The reversal of 133091862789 is 987268190331.

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 not a de Polignac number, because 133091862789 - 2²¹ = 133089765637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133091862389) 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, 22181977129 + ... + 22181977134.

It is an arithmetic number, because the mean of its divisors is an integer number (44363954264).

Almost surely, 2^133091862789 is an apocalyptic number.

It is an amenable number.

133091862789 is a deficient number, since it is larger than the sum of its proper divisors (44363954267).

133091862789 is an equidigital number, since it uses as much as digits as its factorization.

133091862789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44363954266.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The spelling of 133091862789 in words is "one hundred thirty-three billion, ninety-one million, eight hundred sixty-two thousand, seven hundred eighty-nine".