11909697455 has 8 divisors (see below), whose sum is σ = 14677897632. Its totient is φ = 9270250848.

The previous prime is 11909697431. The next prime is 11909697479. The reversal of 11909697455 is 55479690911.

It is an interprime number because it is at equal distance from previous prime (11909697431) and next prime (11909697479).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11909697455 - 2¹⁰ = 11909696431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11909697455.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 32188187 + ... + 32188556.

It is an arithmetic number, because the mean of its divisors is an integer number (1834737204).

Almost surely, 2^11909697455 is an apocalyptic number.

11909697455 is a deficient number, since it is larger than the sum of its proper divisors (2768200177).

11909697455 is an equidigital number, since it uses as much as digits as its factorization.

11909697455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64376785.

The product of its (nonzero) digits is 3061800, while the sum is 56.

The spelling of 11909697455 in words is "eleven billion, nine hundred nine million, six hundred ninety-seven thousand, four hundred fifty-five".