775213883136 has 648 divisors, whose sum is σ = 2880084235392. Its totient is φ = 194816102400.

The previous prime is 775213883117. The next prime is 775213883137. The reversal of 775213883136 is 631388312577.

It is a happy number.

775213883136 is a `hidden beast` number, since 7 + 7 + 521 + 3 + 8 + 83 + 1 + 36 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775213883137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 170486815 + ... + 170491361.

Almost surely, 2^775213883136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 775213883136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440042117696).

775213883136 is an abundant number, since it is smaller than the sum of its proper divisors (2104870352256).

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

775213883136 is a wasteful number, since it uses less digits than its factorization.

775213883136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649 (or 4601 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 775213883136 in words is "seven hundred seventy-five billion, two hundred thirteen million, eight hundred eighty-three thousand, one hundred thirty-six".