1017820678180 has 48 divisors (see below), whose sum is σ = 2143451084544. Its totient is φ = 405980812800.

The previous prime is 1017820678169. The next prime is 1017820678181. The reversal of 1017820678180 is 818760287101.

1017820678180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1017820678180² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1017820678181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26791879 + ... + 26829841.

It is an arithmetic number, because the mean of its divisors is an integer number (44655230928).

Almost surely, 2^{1017820678180} is an apocalyptic number.

1017820678180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1017820678180 is an abundant number, since it is smaller than the sum of its proper divisors (1125630406364).

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

1017820678180 is a wasteful number, since it uses less digits than its factorization.

1017820678180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41716 (or 41714 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 49.

The spelling of 1017820678180 in words is "one trillion, seventeen billion, eight hundred twenty million, six hundred seventy-eight thousand, one hundred eighty".