7820016561924 has 24 divisors (see below), whose sum is σ = 20853377498688. Its totient is φ = 2234290446240.

The previous prime is 7820016561923. The next prime is 7820016561983. The reversal of 7820016561924 is 4291656100287.

It is a super-2 number, since 2×7820016561924² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7820016561923) 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, 46547717547 + ... + 46547717714.

It is an arithmetic number, because the mean of its divisors is an integer number (868890729112).

Almost surely, 2^{7820016561924} is an apocalyptic number.

It is an amenable number.

7820016561924 is an abundant number, since it is smaller than the sum of its proper divisors (13033360936764).

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

7820016561924 is a wasteful number, since it uses less digits than its factorization.

7820016561924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93095435275 (or 93095435273 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 7820016561924 in words is "seven trillion, eight hundred twenty billion, sixteen million, five hundred sixty-one thousand, nine hundred twenty-four".