1000940781195 has 24 divisors (see below), whose sum is σ = 1799221949616. Its totient is φ = 533835082656.

The previous prime is 1000940781163. The next prime is 1000940781199. The reversal of 1000940781195 is 5911870490001.

It is a happy number.

1000940781195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1000940781195 - 2⁵ = 1000940781163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1000940781195.

It is not an unprimeable number, because it can be changed into a prime (1000940781199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411908572 + ... + 411911001.

It is an arithmetic number, because the mean of its divisors is an integer number (74967581234).

Almost surely, 2^{1000940781195} is an apocalyptic number.

1000940781195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1000940781195 is a deficient number, since it is larger than the sum of its proper divisors (798281168421).

1000940781195 is an frugal number, since it uses more digits than its factorization.

1000940781195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823819593 (or 823819581 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The spelling of 1000940781195 in words is "one trillion, nine hundred forty million, seven hundred eighty-one thousand, one hundred ninety-five".