782348856121 has 16 divisors (see below), whose sum is σ = 914966784000. Its totient is φ = 655001571600.

The previous prime is 782348856103. The next prime is 782348856131. The reversal of 782348856121 is 121658843287.

It is not a de Polignac number, because 782348856121 - 2⁵ = 782348856089 is a prime.

It is a super-2 number, since 2×782348856121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (782348856131) 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, 2218555 + ... + 2546896.

It is an arithmetic number, because the mean of its divisors is an integer number (57185424000).

Almost surely, 2^782348856121 is an apocalyptic number.

It is an amenable number.

782348856121 is a deficient number, since it is larger than the sum of its proper divisors (132617927879).

782348856121 is a wasteful number, since it uses less digits than its factorization.

782348856121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4766004.

The product of its digits is 5160960, while the sum is 55.

The spelling of 782348856121 in words is "seven hundred eighty-two billion, three hundred forty-eight million, eight hundred fifty-six thousand, one hundred twenty-one".