1075140840478 has 4 divisors (see below), whose sum is σ = 1612711260720. Its totient is φ = 537570420238.

The previous prime is 1075140840353. The next prime is 1075140840547. The reversal of 1075140840478 is 8740480415701.

It is a happy number.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268785210118 + ... + 268785210121.

It is an arithmetic number, because the mean of its divisors is an integer number (403177815180).

Almost surely, 2^{1075140840478} is an apocalyptic number.

1075140840478 is a deficient number, since it is larger than the sum of its proper divisors (537570420242).

1075140840478 is an equidigital number, since it uses as much as digits as its factorization.

1075140840478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537570420241.

The product of its (nonzero) digits is 1003520, while the sum is 49.

The spelling of 1075140840478 in words is "one trillion, seventy-five billion, one hundred forty million, eight hundred forty thousand, four hundred seventy-eight".