10981500542409 has 16 divisors (see below), whose sum is σ = 15039111358592. Its totient is φ = 7122481383168.

The previous prime is 10981500542371. The next prime is 10981500542449. The reversal of 10981500542409 is 90424500518901.

It is not a de Polignac number, because 10981500542409 - 2²⁹ = 10980963671497 is a prime.

It is a super-2 number, since 2×10981500542409² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10981500542449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3326704 + ... + 5747169.

It is an arithmetic number, because the mean of its divisors is an integer number (939944459912).

Almost surely, 2^{10981500542409} is an apocalyptic number.

It is an amenable number.

10981500542409 is a deficient number, since it is larger than the sum of its proper divisors (4057610816183).

10981500542409 is a wasteful number, since it uses less digits than its factorization.

10981500542409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9084816.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 10981500542409 in words is "ten trillion, nine hundred eighty-one billion, five hundred million, five hundred forty-two thousand, four hundred nine".