1018357809369 has 32 divisors (see below), whose sum is σ = 1408367600640. Its totient is φ = 653994274752.

The previous prime is 1018357809347. The next prime is 1018357809383. The reversal of 1018357809369 is 9639087538101.

1018357809369 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1018357809369 - 2²⁰ = 1018356760793 is a prime.

It is a super-2 number, since 2×1018357809369² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1018357809319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73472962 + ... + 73486820.

It is an arithmetic number, because the mean of its divisors is an integer number (44011487520).

Almost surely, 2^{1018357809369} is an apocalyptic number.

It is an amenable number.

1018357809369 is a deficient number, since it is larger than the sum of its proper divisors (390009791271).

1018357809369 is a wasteful number, since it uses less digits than its factorization.

1018357809369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20429.

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 1018357809369 in words is "one trillion, eighteen billion, three hundred fifty-seven million, eight hundred nine thousand, three hundred sixty-nine".