775113768 has 144 divisors (see below), whose sum is σ = 2480250240. Its totient is φ = 216777600.

The previous prime is 775113767. The next prime is 775113811. The reversal of 775113768 is 867311577.

775113768 is a `hidden beast` number, since 77 + 511 + 3 + 7 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (775113761) 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 35 ways as a sum of consecutive naturals, for example, 130953 + ... + 136743.

It is an arithmetic number, because the mean of its divisors is an integer number (17223960).

Almost surely, 2^775113768 is an apocalyptic number.

775113768 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 775113768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240125120).

775113768 is an abundant number, since it is smaller than the sum of its proper divisors (1705136472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

775113768 is a wasteful number, since it uses less digits than its factorization.

775113768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5840 (or 5820 counting only the distinct ones).

The product of its digits is 246960, while the sum is 45.

The square root of 775113768 is about 27840.8650727667. The cubic root of 775113768 is about 918.5902194999.

The spelling of 775113768 in words is "seven hundred seventy-five million, one hundred thirteen thousand, seven hundred sixty-eight".