2142651805801 has 32 divisors (see below), whose sum is σ = 2328144698880. Its totient is φ = 1960210658304.

The previous prime is 2142651805793. The next prime is 2142651805813. The reversal of 2142651805801 is 1085081562412.

It is a cyclic number.

It is not a de Polignac number, because 2142651805801 - 2³ = 2142651805793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2142651805201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1025681965 + ... + 1025684053.

It is an arithmetic number, because the mean of its divisors is an integer number (72754521840).

Almost surely, 2^{2142651805801} is an apocalyptic number.

It is an amenable number.

2142651805801 is a deficient number, since it is larger than the sum of its proper divisors (185492893079).

2142651805801 is a wasteful number, since it uses less digits than its factorization.

2142651805801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745.

The product of its (nonzero) digits is 153600, while the sum is 43.

The spelling of 2142651805801 in words is "two trillion, one hundred forty-two billion, six hundred fifty-one million, eight hundred five thousand, eight hundred one".