7826280443820 has 120 divisors (see below), whose sum is σ = 24557301546624. Its totient is φ = 2086500639744.

The previous prime is 7826280443771. The next prime is 7826280443837. The reversal of 7826280443820 is 283440826287.

7826280443820 is a `hidden beast` number, since 7 + 8 + 2 + 628 + 0 + 4 + 4 + 3 + 8 + 2 + 0 = 666.

It is a super-2 number, since 2×7826280443820² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6100444 + ... + 7271036.

Almost surely, 2^{7826280443820} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7826280443820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12278650773312).

7826280443820 is an abundant number, since it is smaller than the sum of its proper divisors (16731021102804).

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

7826280443820 is a wasteful number, since it uses less digits than its factorization.

7826280443820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174741 (or 1174730 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 54.

The spelling of 7826280443820 in words is "seven trillion, eight hundred twenty-six billion, two hundred eighty million, four hundred forty-three thousand, eight hundred twenty".