12061862646981 has 16 divisors (see below), whose sum is σ = 18972883795968. Its totient is φ = 6670154458800.

The previous prime is 12061862646973. The next prime is 12061862646989. The reversal of 12061862646981 is 18964626816021.

It is an interprime number because it is at equal distance from previous prime (12061862646973) and next prime (12061862646989).

It is not a de Polignac number, because 12061862646981 - 2³ = 12061862646973 is a prime.

It is a super-2 number, since 2×12061862646981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12061862646989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9264102765 + ... + 9264104066.

It is an arithmetic number, because the mean of its divisors is an integer number (1185805237248).

Almost surely, 2^{12061862646981} is an apocalyptic number.

It is an amenable number.

12061862646981 is a deficient number, since it is larger than the sum of its proper divisors (6911021148987).

12061862646981 is a wasteful number, since it uses less digits than its factorization.

12061862646981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18528206872.

The product of its (nonzero) digits is 11943936, while the sum is 60.

The spelling of 12061862646981 in words is "twelve trillion, sixty-one billion, eight hundred sixty-two million, six hundred forty-six thousand, nine hundred eighty-one".