8206409055780 has 192 divisors, whose sum is σ = 27711476244480. Its totient is φ = 2004133114368.

The previous prime is 8206409055751. The next prime is 8206409055787. The reversal of 8206409055780 is 875509046028.

8206409055780 is a `hidden beast` number, since 8 + 2 + 0 + 6 + 4 + 0 + 9 + 0 + 557 + 80 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (8206409055787) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3710839 + ... + 5493918.

It is an arithmetic number, because the mean of its divisors is an integer number (144330605440).

Almost surely, 2^{8206409055780} is an apocalyptic number.

It is an amenable number.

8206409055780 is an abundant number, since it is smaller than the sum of its proper divisors (19505067188700).

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

8206409055780 is a wasteful number, since it uses less digits than its factorization.

8206409055780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9204915 (or 9204907 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 8206409055780 in words is "eight trillion, two hundred six billion, four hundred nine million, fifty-five thousand, seven hundred eighty".