11969188519642 has 8 divisors (see below), whose sum is σ = 18734382030816. Its totient is φ = 5724394509372.

The previous prime is 11969188519637. The next prime is 11969188519643. The reversal of 11969188519642 is 24691588196911.

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

It is a super-2 number, since 2×11969188519642² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11969188519643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130099875168 + ... + 130099875259.

It is an arithmetic number, because the mean of its divisors is an integer number (2341797753852).

Almost surely, 2^{11969188519642} is an apocalyptic number.

11969188519642 is a deficient number, since it is larger than the sum of its proper divisors (6765193511174).

11969188519642 is a wasteful number, since it uses less digits than its factorization.

11969188519642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260199750452.

The product of its digits is 67184640, while the sum is 70.

The spelling of 11969188519642 in words is "eleven trillion, nine hundred sixty-nine billion, one hundred eighty-eight million, five hundred nineteen thousand, six hundred forty-two".