780011388000 has 1728 divisors, whose sum is σ = 3181660896960. Its totient is φ = 180670464000.

The previous prime is 780011387999. The next prime is 780011388017. The reversal of 780011388000 is 883110087.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 13220531971 + ... + 13220532029.

It is an arithmetic number, because the mean of its divisors is an integer number (1841238945).

Almost surely, 2^780011388000 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 780011388000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590830448480).

780011388000 is an abundant number, since it is smaller than the sum of its proper divisors (2401649508960).

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

780011388000 is a wasteful number, since it uses less digits than its factorization.

780011388000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

Adding to 780011388000 its reverse (883110087), we get a palindrome (780894498087).

The spelling of 780011388000 in words is "seven hundred eighty billion, eleven million, three hundred eighty-eight thousand".