1009951418545 has 12 divisors (see below), whose sum is σ = 1245582167004. Its totient is φ = 786124342080.

The previous prime is 1009951418537. The next prime is 1009951418569. The reversal of 1009951418545 is 5458141599001.

It can be written as a sum of positive squares in 6 ways, for example, as 8574945201 + 1001376473344 = 92601^2 + 1000688^2 .

It is not a de Polignac number, because 1009951418545 - 2³ = 1009951418537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1009951418492 and 1009951418501.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73766086 + ... + 73779775.

It is an arithmetic number, because the mean of its divisors is an integer number (103798513917).

Almost surely, 2^{1009951418545} is an apocalyptic number.

It is an amenable number.

1009951418545 is a deficient number, since it is larger than the sum of its proper divisors (235630748459).

1009951418545 is an equidigital number, since it uses as much as digits as its factorization.

1009951418545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147545940 (or 147545903 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 52.

The spelling of 1009951418545 in words is "one trillion, nine billion, nine hundred fifty-one million, four hundred eighteen thousand, five hundred forty-five".