775100280240 has 360 divisors, whose sum is σ = 3081295024080. Its totient is φ = 173448760320.

The previous prime is 775100280197. The next prime is 775100280247. The reversal of 775100280240 is 42082001577.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 775100280195 and 775100280204.

It is not an unprimeable number, because it can be changed into a prime (775100280247) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 790371 + ... + 1474749.

Almost surely, 2^775100280240 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 775100280240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1540647512040).

775100280240 is an abundant number, since it is smaller than the sum of its proper divisors (2306194743840).

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

775100280240 is a wasteful number, since it uses less digits than its factorization.

775100280240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684433 (or 684413 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The spelling of 775100280240 in words is "seven hundred seventy-five billion, one hundred million, two hundred eighty thousand, two hundred forty".