7827023450820 has 96 divisors (see below), whose sum is σ = 25289644843008. Its totient is φ = 1771664660352.

The previous prime is 7827023450801. The next prime is 7827023450881. The reversal of 7827023450820 is 280543207287.

It is a super-2 number, since 2×7827023450820² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7827023450820.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90421644 + ... + 90508163.

It is an arithmetic number, because the mean of its divisors is an integer number (263433800448).

Almost surely, 2^{7827023450820} is an apocalyptic number.

7827023450820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7827023450820 is an abundant number, since it is smaller than the sum of its proper divisors (17462621392188).

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

7827023450820 is a wasteful number, since it uses less digits than its factorization.

7827023450820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180929929 (or 180929927 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 7827023450820 in words is "seven trillion, eight hundred twenty-seven billion, twenty-three million, four hundred fifty thousand, eight hundred twenty".