780839938088 has 192 divisors, whose sum is σ = 1823143749120. Its totient is φ = 305922816000.

The previous prime is 780839938057. The next prime is 780839938111. The reversal of 780839938088 is 880839938087.

It is a super-2 number, since 2×780839938088² (a number of 25 digits) contains 22 as substring.

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, 2818916606 + ... + 2818916882.

It is an arithmetic number, because the mean of its divisors is an integer number (9495540360).

Almost surely, 2^780839938088 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 780839938088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (911571874560).

780839938088 is an abundant number, since it is smaller than the sum of its proper divisors (1042303811032).

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

780839938088 is a wasteful number, since it uses less digits than its factorization.

780839938088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 71.

Subtracting 780839938088 from its reverse (880839938087), we obtain a palindrome (99999999999).

It can be divided in two parts, 7808399 and 38088, that added together give a palindrome (7846487).

The spelling of 780839938088 in words is "seven hundred eighty billion, eight hundred thirty-nine million, nine hundred thirty-eight thousand, eighty-eight".