13401778070081 has 16 divisors (see below), whose sum is σ = 14129896480128. Its totient is φ = 12685904352000.

The previous prime is 13401778070017. The next prime is 13401778070101. The reversal of 13401778070081 is 18007087710431.

It is a cyclic number.

It is not a de Polignac number, because 13401778070081 - 2⁶ = 13401778070017 is a prime.

It is a super-2 number, since 2×13401778070081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13401778070281) 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, 3285641 + ... + 6131801.

It is an arithmetic number, because the mean of its divisors is an integer number (883118530008).

Almost surely, 2^{13401778070081} is an apocalyptic number.

It is an amenable number.

13401778070081 is a deficient number, since it is larger than the sum of its proper divisors (728118410047).

13401778070081 is a wasteful number, since it uses less digits than its factorization.

13401778070081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848312.

The product of its (nonzero) digits is 263424, while the sum is 47.

The spelling of 13401778070081 in words is "thirteen trillion, four hundred one billion, seven hundred seventy-eight million, seventy thousand, eighty-one".