11957723278368 has 96 divisors (see below), whose sum is σ = 35876952107136. Its totient is φ = 3416132149248.

The previous prime is 11957723278331. The next prime is 11957723278381. The reversal of 11957723278368 is 86387232775911.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5472880 + ... + 7339472.

It is an arithmetic number, because the mean of its divisors is an integer number (373718251116).

Almost surely, 2^{11957723278368} is an apocalyptic number.

It is an amenable number.

11957723278368 is an abundant number, since it is smaller than the sum of its proper divisors (23919228828768).

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

11957723278368 is a wasteful number, since it uses less digits than its factorization.

11957723278368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876146 (or 1876138 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 69.

The spelling of 11957723278368 in words is "eleven trillion, nine hundred fifty-seven billion, seven hundred twenty-three million, two hundred seventy-eight thousand, three hundred sixty-eight".