11800470447 has 16 divisors (see below), whose sum is σ = 18046120960. Its totient is φ = 7613206200.

The previous prime is 11800470431. The next prime is 11800470463. The reversal of 11800470447 is 74407400811.

11800470447 is a `hidden beast` number, since 1 + 180 + 0 + 470 + 4 + 4 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (11800470431) and next prime (11800470463).

It is not a de Polignac number, because 11800470447 - 2⁴ = 11800470431 is a prime.

It is a super-2 number, since 2×11800470447² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11800470427) 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 15 ways as a sum of consecutive naturals, for example, 7048429 + ... + 7050102.

It is an arithmetic number, because the mean of its divisors is an integer number (1127882560).

Almost surely, 2^11800470447 is an apocalyptic number.

11800470447 is a deficient number, since it is larger than the sum of its proper divisors (6245650513).

11800470447 is a wasteful number, since it uses less digits than its factorization.

11800470447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14098571 (or 14098565 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 11800470447 in words is "eleven billion, eight hundred million, four hundred seventy thousand, four hundred forty-seven".