9135862908481 has 9 divisors (see below), whose sum is σ = 9146390505123. Its totient is φ = 9125347425720.

The previous prime is 9135862908439. The next prime is 9135862908539. The reversal of 9135862908481 is 1848092685319.

It is a happy number.

The square root of 9135862908481 is 3022559.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4873537496881 + 4262325411600 = 2207609^2 + 2064540^2 .

It is not a de Polignac number, because 9135862908481 - 2⁷ = 9135862908353 is a prime.

It is a super-2 number, since 2×9135862908481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9135862908401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5044650066 + ... + 5044651876.

Almost surely, 2^{9135862908481} is an apocalyptic number.

9135862908481 is the 3022559-th square number.

9135862908481 is the 1511280-th centered octagonal number.

It is an amenable number.

9135862908481 is a deficient number, since it is larger than the sum of its proper divisors (10527596642).

9135862908481 is an frugal number, since it uses more digits than its factorization.

9135862908481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6960 (or 3480 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 64.

Multiplying 9135862908481 by its sum of digits (64), we get a square (584695226142784 = 24180472²).

The spelling of 9135862908481 in words is "nine trillion, one hundred thirty-five billion, eight hundred sixty-two million, nine hundred eight thousand, four hundred eighty-one".