77477371043811 has 8 divisors (see below), whose sum is σ = 103303357425744. Its totient is φ = 51651482678880.

The previous prime is 77477371043789. The next prime is 77477371043827. The reversal of 77477371043811 is 11834017377477.

It is a happy number.

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

It is not a de Polignac number, because 77477371043811 - 2¹⁸ = 77477370781667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77477371043881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22639600 + ... + 25836141.

It is an arithmetic number, because the mean of its divisors is an integer number (12912919678218).

Almost surely, 2^{77477371043811} is an apocalyptic number.

77477371043811 is a deficient number, since it is larger than the sum of its proper divisors (25825986381933).

77477371043811 is a wasteful number, since it uses less digits than its factorization.

77477371043811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49008501.

The product of its (nonzero) digits is 19361664, while the sum is 60.

The spelling of 77477371043811 in words is "seventy-seven trillion, four hundred seventy-seven billion, three hundred seventy-one million, forty-three thousand, eight hundred eleven".