77401324101011 has 4 divisors (see below), whose sum is σ = 77455337587512. Its totient is φ = 77347310614512.

The previous prime is 77401324100923. The next prime is 77401324101119. The reversal of 77401324101011 is 11010142310477.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77401324101011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77401324101511) 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, 27006741101 + ... + 27006743966.

It is an arithmetic number, because the mean of its divisors is an integer number (19363834396878).

Almost surely, 2^{77401324101011} is an apocalyptic number.

77401324101011 is a deficient number, since it is larger than the sum of its proper divisors (54013486501).

77401324101011 is a wasteful number, since it uses less digits than its factorization.

77401324101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54013486500.

The product of its (nonzero) digits is 4704, while the sum is 32.

Adding to 77401324101011 its reverse (11010142310477), we get a palindrome (88411466411488).

The spelling of 77401324101011 in words is "seventy-seven trillion, four hundred one billion, three hundred twenty-four million, one hundred one thousand, eleven".