134057805691 has 4 divisors (see below), whose sum is σ = 134455603672. Its totient is φ = 133660007712.

The previous prime is 134057805659. The next prime is 134057805697. The reversal of 134057805691 is 196508750431.

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

It is a cyclic number.

It is not a de Polignac number, because 134057805691 - 2⁵ = 134057805659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134057805697) 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, 198898485 + ... + 198899158.

It is an arithmetic number, because the mean of its divisors is an integer number (33613900918).

Almost surely, 2^134057805691 is an apocalyptic number.

134057805691 is a deficient number, since it is larger than the sum of its proper divisors (397797981).

134057805691 is an equidigital number, since it uses as much as digits as its factorization.

134057805691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397797980.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 134057805691 in words is "one hundred thirty-four billion, fifty-seven million, eight hundred five thousand, six hundred ninety-one".