77544201113311 has 4 divisors (see below), whose sum is σ = 77544297381952. Its totient is φ = 77544104844672.

The previous prime is 77544201113303. The next prime is 77544201113329. The reversal of 77544201113311 is 11331110244577.

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

It is a cyclic number.

It is not a de Polignac number, because 77544201113311 - 2³ = 77544201113303 is a prime.

It is a super-2 number, since 2×77544201113311² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77544201113111) 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, 46915791 + ... + 48540496.

It is an arithmetic number, because the mean of its divisors is an integer number (19386074345488).

Almost surely, 2^{77544201113311} is an apocalyptic number.

77544201113311 is a deficient number, since it is larger than the sum of its proper divisors (96268641).

77544201113311 is an equidigital number, since it uses as much as digits as its factorization.

77544201113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96268640.

The product of its (nonzero) digits is 70560, while the sum is 40.

Adding to 77544201113311 its reverse (11331110244577), we get a palindrome (88875311357888).

The spelling of 77544201113311 in words is "seventy-seven trillion, five hundred forty-four billion, two hundred one million, one hundred thirteen thousand, three hundred eleven".