780873205140 has 1152 divisors, whose sum is σ = 3019688179200. Its totient is φ = 168882029568.

The previous prime is 780873205127. The next prime is 780873205157. The reversal of 780873205140 is 41502378087.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 3409926546 + ... + 3409926774.

It is an arithmetic number, because the mean of its divisors is an integer number (2621257100).

Almost surely, 2^780873205140 is an apocalyptic number.

780873205140 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 780873205140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509844089600).

780873205140 is an abundant number, since it is smaller than the sum of its proper divisors (2238814974060).

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

780873205140 is a wasteful number, since it uses less digits than its factorization.

780873205140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 780873205140 in words is "seven hundred eighty billion, eight hundred seventy-three million, two hundred five thousand, one hundred forty".