775503440140 has 576 divisors, whose sum is σ = 2107116063360. Its totient is φ = 237219840000.

The previous prime is 775503440083. The next prime is 775503440141. The reversal of 775503440140 is 41044305577.

775503440140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 775503440093 and 775503440102.

It is not an unprimeable number, because it can be changed into a prime (775503440141) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3089655015 + ... + 3089655265.

It is an arithmetic number, because the mean of its divisors is an integer number (3658187610).

Almost surely, 2^775503440140 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 775503440140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053558031680).

775503440140 is an abundant number, since it is smaller than the sum of its proper divisors (1331612623220).

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

775503440140 is a wasteful number, since it uses less digits than its factorization.

775503440140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 40.

The spelling of 775503440140 in words is "seven hundred seventy-five billion, five hundred three million, four hundred forty thousand, one hundred forty".