11953909749939 has 8 divisors (see below), whose sum is σ = 16093289501952. Its totient is φ = 7891901582280.

The previous prime is 11953909749907. The next prime is 11953909749961. The reversal of 11953909749939 is 93994790935911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11953909749939 - 2⁵ = 11953909749907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11953909742939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19342895727 + ... + 19342896344.

It is an arithmetic number, because the mean of its divisors is an integer number (2011661187744).

Almost surely, 2^{11953909749939} is an apocalyptic number.

11953909749939 is a deficient number, since it is larger than the sum of its proper divisors (4139379752013).

11953909749939 is a wasteful number, since it uses less digits than its factorization.

11953909749939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38685792177.

The product of its (nonzero) digits is 669615660, while the sum is 78.

The spelling of 11953909749939 in words is "eleven trillion, nine hundred fifty-three billion, nine hundred nine million, seven hundred forty-nine thousand, nine hundred thirty-nine".