1572807340081 has 4 divisors (see below), whose sum is σ = 1572821017200. Its totient is φ = 1572793662964.

The previous prime is 1572807339989. The next prime is 1572807340087. The reversal of 1572807340081 is 1800437082751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1572807340081 - 2⁹ = 1572807339569 is a prime.

It is a super-3 number, since 3×1572807340081³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1572807340087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6664591 + ... + 6896548.

It is an arithmetic number, because the mean of its divisors is an integer number (393205254300).

Almost surely, 2^{1572807340081} is an apocalyptic number.

It is an amenable number.

1572807340081 is a deficient number, since it is larger than the sum of its proper divisors (13677119).

1572807340081 is a wasteful number, since it uses less digits than its factorization.

1572807340081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13677118.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 1572807340081 in words is "one trillion, five hundred seventy-two billion, eight hundred seven million, three hundred forty thousand, eighty-one".