775845396480 has 720 divisors, whose sum is σ = 3151036195776. Its totient is φ = 161187102720.

The previous prime is 775845396421. The next prime is 775845396499. The reversal of 775845396480 is 84693548577.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132461712 + ... + 132467568.

Almost surely, 2^775845396480 is an apocalyptic number.

775845396480 is a gapful number since it is divisible by the number (70) 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 775845396480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575518097888).

775845396480 is an abundant number, since it is smaller than the sum of its proper divisors (2375190799296).

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

775845396480 is a wasteful number, since it uses less digits than its factorization.

775845396480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918 (or 5885 counting only the distinct ones).

The product of its (nonzero) digits is 203212800, while the sum is 66.

The spelling of 775845396480 in words is "seven hundred seventy-five billion, eight hundred forty-five million, three hundred ninety-six thousand, four hundred eighty".