11990467800 has 96 divisors (see below), whose sum is σ = 41300518800. Its totient is φ = 3197456640.

The previous prime is 11990467777. The next prime is 11990467823. The reversal of 11990467800 is 876409911.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11990467777) and next prime (11990467823).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1104829 + ... + 1115628.

Almost surely, 2^11990467800 is an apocalyptic number.

11990467800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11990467800 is an abundant number, since it is smaller than the sum of its proper divisors (29310051000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11990467800 is a wasteful number, since it uses less digits than its factorization.

11990467800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220482 (or 2220467 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 11990467800 in words is "eleven billion, nine hundred ninety million, four hundred sixty-seven thousand, eight hundred".