7786380570228 has 720 divisors, whose sum is σ = 24262442930880. Its totient is φ = 2175290836992.

The previous prime is 7786380570223. The next prime is 7786380570253. The reversal of 7786380570228 is 8220750836877.

7786380570228 is a `hidden beast` number, since 7 + 7 + 8 + 6 + 38 + 0 + 570 + 2 + 28 = 666.

It is a super-2 number, since 2×7786380570228² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7786380570223) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 6559713451 + ... + 6559714637.

It is an arithmetic number, because the mean of its divisors is an integer number (33697837404).

Almost surely, 2^{7786380570228} is an apocalyptic number.

7786380570228 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7786380570228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12131221465440).

7786380570228 is an abundant number, since it is smaller than the sum of its proper divisors (16476062360652).

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

7786380570228 is a wasteful number, since it uses less digits than its factorization.

7786380570228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 63221760, while the sum is 63.

The spelling of 7786380570228 in words is "seven trillion, seven hundred eighty-six billion, three hundred eighty million, five hundred seventy thousand, two hundred twenty-eight".