1240806988801 has 16 divisors (see below), whose sum is σ = 1258546032000. Its totient is φ = 1223232962688.

The previous prime is 1240806988787. The next prime is 1240806988831. The reversal of 1240806988801 is 1088896080421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240806988801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240806988831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9804141 + ... + 9929893.

It is an arithmetic number, because the mean of its divisors is an integer number (78659127000).

Almost surely, 2^{1240806988801} is an apocalyptic number.

It is an amenable number.

1240806988801 is a deficient number, since it is larger than the sum of its proper divisors (17739043199).

1240806988801 is a wasteful number, since it uses less digits than its factorization.

1240806988801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126408.

The product of its (nonzero) digits is 1769472, while the sum is 55.

The spelling of 1240806988801 in words is "one trillion, two hundred forty billion, eight hundred six million, nine hundred eighty-eight thousand, eight hundred one".