1000640245043 has 8 divisors (see below), whose sum is σ = 1008382312080. Its totient is φ = 992899747840.

The previous prime is 1000640245021. The next prime is 1000640245097. The reversal of 1000640245043 is 3405420460001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000640245043 - 2⁸ = 1000640244787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000640244997 and 1000640245015.

It is not an unprimeable number, because it can be changed into a prime (1000640245243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903803 + ... + 1678731.

It is an arithmetic number, because the mean of its divisors is an integer number (126047789010).

Almost surely, 2^{1000640245043} is an apocalyptic number.

1000640245043 is a deficient number, since it is larger than the sum of its proper divisors (7742067037).

1000640245043 is an equidigital number, since it uses as much as digits as its factorization.

1000640245043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784917.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 1000640245043 in words is "one trillion, six hundred forty million, two hundred forty-five thousand, forty-three".