11621847135425 has 6 divisors (see below), whose sum is σ = 14411090447958. Its totient is φ = 9297477708320.

The previous prime is 11621847135373. The next prime is 11621847135473. The reversal of 11621847135425 is 52453174812611.

It can be written as a sum of positive squares in 3 ways, for example, as 237269332609 + 11384577802816 = 487103^2 + 3374104^2 .

It is not a de Polignac number, because 11621847135425 - 2⁸ = 11621847135169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 232436942684 + ... + 232436942733.

It is an arithmetic number, because the mean of its divisors is an integer number (2401848407993).

Almost surely, 2^{11621847135425} is an apocalyptic number.

It is an amenable number.

11621847135425 is a deficient number, since it is larger than the sum of its proper divisors (2789243312533).

11621847135425 is an equidigital number, since it uses as much as digits as its factorization.

11621847135425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464873885427 (or 464873885422 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 50.

The spelling of 11621847135425 in words is "eleven trillion, six hundred twenty-one billion, eight hundred forty-seven million, one hundred thirty-five thousand, four hundred twenty-five".