11987475049682 has 16 divisors (see below), whose sum is σ = 19642269189312. Its totient is φ = 5441518704720.

The previous prime is 11987475049633. The next prime is 11987475049687. The reversal of 11987475049682 is 28694057478911.

It is a happy number.

It is a super-2 number, since 2×11987475049682² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11987475049687) 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, 366662813 + ... + 366695504.

It is an arithmetic number, because the mean of its divisors is an integer number (1227641824332).

Almost surely, 2^{11987475049682} is an apocalyptic number.

11987475049682 is a deficient number, since it is larger than the sum of its proper divisors (7654794139630).

11987475049682 is a wasteful number, since it uses less digits than its factorization.

11987475049682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733359073.

The product of its (nonzero) digits is 243855360, while the sum is 71.

The spelling of 11987475049682 in words is "eleven trillion, nine hundred eighty-seven billion, four hundred seventy-five million, forty-nine thousand, six hundred eighty-two".