545339076691 has 2 divisors, whose sum is σ = 545339076692. Its totient is φ = 545339076690.

The previous prime is 545339076683. The next prime is 545339076761. The reversal of 545339076691 is 196670933545.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545339076691 - 2³ = 545339076683 is a prime.

It is not a weakly prime, because it can be changed into another prime (545339076661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272669538345 + 272669538346.

It is an arithmetic number, because the mean of its divisors is an integer number (272669538346).

Almost surely, 2^545339076691 is an apocalyptic number.

545339076691 is a deficient number, since it is larger than the sum of its proper divisors (1).

545339076691 is an equidigital number, since it uses as much as digits as its factorization.

545339076691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18370800, while the sum is 58.

The spelling of 545339076691 in words is "five hundred forty-five billion, three hundred thirty-nine million, seventy-six thousand, six hundred ninety-one".