11435896409 has 12 divisors (see below), whose sum is σ = 13312833588. Its totient is φ = 9794937600.

The previous prime is 11435896403. The next prime is 11435896441. The reversal of 11435896409 is 90469853411.

It can be written as a sum of positive squares in 2 ways, for example, as 3798010384 + 7637886025 = 61628^2 + 87395^2 .

It is not a de Polignac number, because 11435896409 - 2¹² = 11435892313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11435896403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19052 + ... + 152429.

It is an arithmetic number, because the mean of its divisors is an integer number (1109402799).

Almost surely, 2^11435896409 is an apocalyptic number.

It is an amenable number.

11435896409 is a deficient number, since it is larger than the sum of its proper divisors (1876937179).

11435896409 is a wasteful number, since it uses less digits than its factorization.

11435896409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172856 (or 172849 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 11435896409 in words is "eleven billion, four hundred thirty-five million, eight hundred ninety-six thousand, four hundred nine".