783603120728 has 32 divisors (see below), whose sum is σ = 1579491187200. Its totient is φ = 363282966432.

The previous prime is 783603120721. The next prime is 783603120737. The reversal of 783603120728 is 827021306387.

783603120728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×783603120728² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (783603120721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54836300 + ... + 54850587.

It is an arithmetic number, because the mean of its divisors is an integer number (49359099600).

Almost surely, 2^783603120728 is an apocalyptic number.

It is an amenable number.

783603120728 is an abundant number, since it is smaller than the sum of its proper divisors (795888066472).

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

783603120728 is a wasteful number, since it uses less digits than its factorization.

783603120728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109686959 (or 109686955 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 783603120728 in words is "seven hundred eighty-three billion, six hundred three million, one hundred twenty thousand, seven hundred twenty-eight".