11435440512551 has 6 divisors (see below), whose sum is σ = 12569533786656. Its totient is φ = 10395855011300.

The previous prime is 11435440512541. The next prime is 11435440512581. The reversal of 11435440512551 is 15521504453411.

It is not a de Polignac number, because 11435440512551 - 2¹⁴ = 11435440496167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11435440512499 and 11435440512508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11435440512541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47253886295 + ... + 47253886536.

It is an arithmetic number, because the mean of its divisors is an integer number (2094922297776).

Almost surely, 2^{11435440512551} is an apocalyptic number.

11435440512551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11435440512551 is a deficient number, since it is larger than the sum of its proper divisors (1134093274105).

11435440512551 is an equidigital number, since it uses as much as digits as its factorization.

11435440512551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94507772853 (or 94507772842 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 41.

Adding to 11435440512551 its reverse (15521504453411), we get a palindrome (26956944965962).

The spelling of 11435440512551 in words is "eleven trillion, four hundred thirty-five billion, four hundred forty million, five hundred twelve thousand, five hundred fifty-one".