11899246464 has 128 divisors (see below), whose sum is σ = 40136428800. Its totient is φ = 3399777792.

The previous prime is 11899246459. The next prime is 11899246501. The reversal of 11899246464 is 46464299811.

11899246464 is a `hidden beast` number, since 11 + 89 + 92 + 4 + 6 + 464 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×11899246464² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 11899246464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221742 + ... + 270125.

It is an arithmetic number, because the mean of its divisors is an integer number (313565850).

Almost surely, 2^11899246464 is an apocalyptic number.

11899246464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11899246464 is an abundant number, since it is smaller than the sum of its proper divisors (28237182336).

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

11899246464 is an equidigital number, since it uses as much as digits as its factorization.

11899246464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491897 (or 491879 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 11899246464 in words is "eleven billion, eight hundred ninety-nine million, two hundred forty-six thousand, four hundred sixty-four".