5391061779 has 4 divisors (see below), whose sum is σ = 7188082376. Its totient is φ = 3594041184.

The previous prime is 5391061771. The next prime is 5391061813. The reversal of 5391061779 is 9771601935.

5391061779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5391061779 - 2³ = 5391061771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5391061771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898510294 + ... + 898510299.

It is an arithmetic number, because the mean of its divisors is an integer number (1797020594).

Almost surely, 2^5391061779 is an apocalyptic number.

5391061779 is a deficient number, since it is larger than the sum of its proper divisors (1797020597).

5391061779 is a wasteful number, since it uses less digits than its factorization.

5391061779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797020596.

The product of its (nonzero) digits is 357210, while the sum is 48.

The square root of 5391061779 is about 73423.8502055020. The cubic root of 5391061779 is about 1753.4421262577.

The spelling of 5391061779 in words is "five billion, three hundred ninety-one million, sixty-one thousand, seven hundred seventy-nine".