133858132691 has 8 divisors (see below), whose sum is σ = 139053326400. Its totient is φ = 128701565440.

The previous prime is 133858132627. The next prime is 133858132757. The reversal of 133858132691 is 196231858331.

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

It is a cyclic number.

It is not a de Polignac number, because 133858132691 - 2⁶ = 133858132627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133858132591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9649550 + ... + 9663411.

It is an arithmetic number, because the mean of its divisors is an integer number (17381665800).

Almost surely, 2^133858132691 is an apocalyptic number.

133858132691 is a deficient number, since it is larger than the sum of its proper divisors (5195193709).

133858132691 is a wasteful number, since it uses less digits than its factorization.

133858132691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19313229.

The product of its digits is 933120, while the sum is 50.

The spelling of 133858132691 in words is "one hundred thirty-three billion, eight hundred fifty-eight million, one hundred thirty-two thousand, six hundred ninety-one".