1009534390481 has 4 divisors (see below), whose sum is σ = 1014061450752. Its totient is φ = 1005007330212.

The previous prime is 1009534390439. The next prime is 1009534390493. The reversal of 1009534390481 is 1840934359001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1009534390481 is a prime.

It is a super-2 number, since 2×1009534390481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1009534399481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263529801 + ... + 2263530246.

It is an arithmetic number, because the mean of its divisors is an integer number (253515362688).

Almost surely, 2^{1009534390481} is an apocalyptic number.

It is an amenable number.

1009534390481 is a deficient number, since it is larger than the sum of its proper divisors (4527060271).

1009534390481 is an equidigital number, since it uses as much as digits as its factorization.

1009534390481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4527060270.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 1009534390481 in words is "one trillion, nine billion, five hundred thirty-four million, three hundred ninety thousand, four hundred eighty-one".