788321451021 has 8 divisors (see below), whose sum is σ = 1131948750240. Its totient is φ = 485120892912.

The previous prime is 788321450971. The next prime is 788321451067. The reversal of 788321451021 is 120154123887.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 788321451021 - 2¹³ = 788321442829 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (788320451021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10106685231 + ... + 10106685308.

It is an arithmetic number, because the mean of its divisors is an integer number (141493593780).

Almost surely, 2^788321451021 is an apocalyptic number.

It is an amenable number.

788321451021 is a deficient number, since it is larger than the sum of its proper divisors (343627299219).

788321451021 is a wasteful number, since it uses less digits than its factorization.

788321451021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20213370555.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 788321451021 in words is "seven hundred eighty-eight billion, three hundred twenty-one million, four hundred fifty-one thousand, twenty-one".