1040732781927 has 4 divisors (see below), whose sum is σ = 1387643709240. Its totient is φ = 693821854616.

The previous prime is 1040732781883. The next prime is 1040732781931. The reversal of 1040732781927 is 7291872370401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1040732781927 - 2¹⁰ = 1040732780903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040732781927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040732781997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173455463652 + ... + 173455463657.

It is an arithmetic number, because the mean of its divisors is an integer number (346910927310).

Almost surely, 2^{1040732781927} is an apocalyptic number.

1040732781927 is a deficient number, since it is larger than the sum of its proper divisors (346910927313).

1040732781927 is an equidigital number, since it uses as much as digits as its factorization.

1040732781927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346910927312.

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 1040732781927 in words is "one trillion, forty billion, seven hundred thirty-two million, seven hundred eighty-one thousand, nine hundred twenty-seven".