11899647754943 has 16 divisors (see below), whose sum is σ = 13114559252256. Its totient is φ = 10727589317760.

The previous prime is 11899647754913. The next prime is 11899647754961. The reversal of 11899647754943 is 34945774699811.

11899647754943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11899647754943 - 2⁴² = 7501601243839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11899647754913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3567653 + ... + 6043793.

It is an arithmetic number, because the mean of its divisors is an integer number (819659953266).

Almost surely, 2^{11899647754943} is an apocalyptic number.

11899647754943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11899647754943 is a deficient number, since it is larger than the sum of its proper divisors (1214911497313).

11899647754943 is a wasteful number, since it uses less digits than its factorization.

11899647754943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484794.

The product of its digits is 1646023680, while the sum is 77.

The spelling of 11899647754943 in words is "eleven trillion, eight hundred ninety-nine billion, six hundred forty-seven million, seven hundred fifty-four thousand, nine hundred forty-three".