11969877034081 has 8 divisors (see below), whose sum is σ = 12023186923880. Its totient is φ = 11916576185472.

The previous prime is 11969877034013. The next prime is 11969877034103. The reversal of 11969877034081 is 18043077896911.

It can be written as a sum of positive squares in 4 ways, for example, as 6956379875025 + 5013497159056 = 2637495^2 + 2239084^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11969877034081 - 2¹³ = 11969877025889 is a prime.

It is a super-2 number, since 2×11969877034081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11969877034981) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 400411 + ... + 4909183.

It is an arithmetic number, because the mean of its divisors is an integer number (1502898365485).

Almost surely, 2^{11969877034081} is an apocalyptic number.

It is an amenable number.

11969877034081 is a deficient number, since it is larger than the sum of its proper divisors (53309889799).

11969877034081 is a wasteful number, since it uses less digits than its factorization.

11969877034081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520595.

The product of its (nonzero) digits is 18289152, while the sum is 64.

The spelling of 11969877034081 in words is "eleven trillion, nine hundred sixty-nine billion, eight hundred seventy-seven million, thirty-four thousand, eighty-one".