1011868350653 has 8 divisors (see below), whose sum is σ = 1013497593528. Its totient is φ = 1010240146944.

The previous prime is 1011868350643. The next prime is 1011868350667. The reversal of 1011868350653 is 3560538681101.

It can be written as a sum of positive squares in 4 ways, for example, as 19938004804 + 991930345849 = 141202^2 + 995957^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011868350653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011868350598 and 1011868350607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011868350643) 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, 1701125 + ... + 2217557.

It is an arithmetic number, because the mean of its divisors is an integer number (126687199191).

Almost surely, 2^{1011868350653} is an apocalyptic number.

It is an amenable number.

1011868350653 is a deficient number, since it is larger than the sum of its proper divisors (1629242875).

1011868350653 is an equidigital number, since it uses as much as digits as its factorization.

1011868350653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519583.

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 1011868350653 in words is "one trillion, eleven billion, eight hundred sixty-eight million, three hundred fifty thousand, six hundred fifty-three".