121243463647672 has 32 divisors (see below), whose sum is σ = 233515756483200. Its totient is φ = 58973159009664.

The previous prime is 121243463647643. The next prime is 121243463647673. The reversal of 121243463647672 is 276746364342121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121243463647673) 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, 33511272 + ... + 36952567.

It is an arithmetic number, because the mean of its divisors is an integer number (7297367390100).

Almost surely, 2^{121243463647672} is an apocalyptic number.

It is an amenable number.

121243463647672 is a deficient number, since it is larger than the sum of its proper divisors (112272292835528).

121243463647672 is a wasteful number, since it uses less digits than its factorization.

121243463647672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70469695 (or 70469691 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 58.

The spelling of 121243463647672 in words is "one hundred twenty-one trillion, two hundred forty-three billion, four hundred sixty-three million, six hundred forty-seven thousand, six hundred seventy-two".