133900627691 has 4 divisors (see below), whose sum is σ = 135085589112. Its totient is φ = 132715666272.

The previous prime is 133900627639. The next prime is 133900627703. The reversal of 133900627691 is 196726009331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133900627691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133900627631) 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 3 ways as a sum of consecutive naturals, for example, 592480541 + ... + 592480766.

It is an arithmetic number, because the mean of its divisors is an integer number (33771397278).

Almost surely, 2^133900627691 is an apocalyptic number.

133900627691 is a deficient number, since it is larger than the sum of its proper divisors (1184961421).

133900627691 is a wasteful number, since it uses less digits than its factorization.

133900627691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184961420.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 133900627691 in words is "one hundred thirty-three billion, nine hundred million, six hundred twenty-seven thousand, six hundred ninety-one".