788128671840 has 48 divisors (see below), whose sum is σ = 2482605317808. Its totient is φ = 210167645696.

The previous prime is 788128671829. The next prime is 788128671851. The reversal of 788128671840 is 48176821887.

It is an interprime number because it is at equal distance from previous prime (788128671829) and next prime (788128671851).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×788128671840² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820966887 + ... + 820967846.

It is an arithmetic number, because the mean of its divisors is an integer number (51720944121).

Almost surely, 2^788128671840 is an apocalyptic number.

It is an amenable number.

788128671840 is an abundant number, since it is smaller than the sum of its proper divisors (1694476645968).

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

788128671840 is a wasteful number, since it uses less digits than its factorization.

788128671840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641934751 (or 1641934743 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 60.

The spelling of 788128671840 in words is "seven hundred eighty-eight billion, one hundred twenty-eight million, six hundred seventy-one thousand, eight hundred forty".