11331440643425 has 72 divisors (see below), whose sum is σ = 16850664208704. Its totient is φ = 7399264083840.

The previous prime is 11331440643407. The next prime is 11331440643431. The reversal of 11331440643425 is 52434604413311.

It is not a de Polignac number, because 11331440643425 - 2¹⁴ = 11331440627041 is a prime.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 13907162 + ... + 14699388.

Almost surely, 2^{11331440643425} is an apocalyptic number.

It is an amenable number.

11331440643425 is a deficient number, since it is larger than the sum of its proper divisors (5519223565279).

11331440643425 is an equidigital number, since it uses as much as digits as its factorization.

11331440643425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792375 (or 792323 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 11331440643425 in words is "eleven trillion, three hundred thirty-one billion, four hundred forty million, six hundred forty-three thousand, four hundred twenty-five".