5491605694 has 4 divisors (see below), whose sum is σ = 8237408544. Its totient is φ = 2745802846.

The previous prime is 5491605683. The next prime is 5491605767. The reversal of 5491605694 is 4965061945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4965061945 = 5 ⋅993012389.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372901422 + ... + 1372901425.

It is an arithmetic number, because the mean of its divisors is an integer number (2059352136).

Almost surely, 2^5491605694 is an apocalyptic number.

5491605694 is a deficient number, since it is larger than the sum of its proper divisors (2745802850).

5491605694 is a wasteful number, since it uses less digits than its factorization.

5491605694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745802849.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 5491605694 is about 74105.3688608322. The cubic root of 5491605694 is about 1764.2756854326.

The spelling of 5491605694 in words is "five billion, four hundred ninety-one million, six hundred five thousand, six hundred ninety-four".