11944690103978 has 4 divisors (see below), whose sum is σ = 17917035155970. Its totient is φ = 5972345051988.

The previous prime is 11944690103963. The next prime is 11944690104001. The reversal of 11944690103978 is 87930109644911.

11944690103978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10778922898129 + 1165767205849 = 3283127^2 + 1079707^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11944690103978.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2986172525993 + ... + 2986172525996.

Almost surely, 2^{11944690103978} is an apocalyptic number.

11944690103978 is a deficient number, since it is larger than the sum of its proper divisors (5972345051992).

11944690103978 is an equidigital number, since it uses as much as digits as its factorization.

11944690103978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972345051991.

The product of its (nonzero) digits is 11757312, while the sum is 62.

The spelling of 11944690103978 in words is "eleven trillion, nine hundred forty-four billion, six hundred ninety million, one hundred three thousand, nine hundred seventy-eight".