1240539654312 has 96 divisors (see below), whose sum is σ = 3839929778880. Its totient is φ = 354424746240.

The previous prime is 1240539654271. The next prime is 1240539654317. The reversal of 1240539654312 is 2134569350421.

1240539654312 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 5 + 3 + 96 + 543 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (1240539654317) 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 23 ways as a sum of consecutive naturals, for example, 17645743 + ... + 17715905.

It is an arithmetic number, because the mean of its divisors is an integer number (39999268530).

Almost surely, 2^{1240539654312} is an apocalyptic number.

1240539654312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240539654312 is an abundant number, since it is smaller than the sum of its proper divisors (2599390124568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240539654312 is a wasteful number, since it uses less digits than its factorization.

1240539654312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105263 (or 105256 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 1240539654312 in words is "one trillion, two hundred forty billion, five hundred thirty-nine million, six hundred fifty-four thousand, three hundred twelve".