780050055504 has 80 divisors (see below), whose sum is σ = 2090803590720. Its totient is φ = 250305484800.

The previous prime is 780050055401. The next prime is 780050055509. The reversal of 780050055504 is 405550050087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780050055509) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 362322 + ... + 1300529.

It is an arithmetic number, because the mean of its divisors is an integer number (26135044884).

Almost surely, 2^780050055504 is an apocalyptic number.

It is an amenable number.

780050055504 is an abundant number, since it is smaller than the sum of its proper divisors (1310753535216).

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

780050055504 is a wasteful number, since it uses less digits than its factorization.

780050055504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663228 (or 1663222 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 39.

The spelling of 780050055504 in words is "seven hundred eighty billion, fifty million, fifty-five thousand, five hundred four".