8070206813881 has 4 divisors (see below), whose sum is σ = 8092196478592. Its totient is φ = 8048217149172.

The previous prime is 8070206813869. The next prime is 8070206813897. The reversal of 8070206813881 is 1883186020708.

It is a happy number.

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 8070206813881 - 2¹⁵ = 8070206781113 is a prime.

It is a super-2 number, since 2×8070206813881² (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 (8070206813821) 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, 10994831805 + ... + 10994832538.

It is an arithmetic number, because the mean of its divisors is an integer number (2023049119648).

Almost surely, 2^{8070206813881} is an apocalyptic number.

It is an amenable number.

8070206813881 is a deficient number, since it is larger than the sum of its proper divisors (21989664711).

8070206813881 is a wasteful number, since it uses less digits than its factorization.

8070206813881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21989664710.

The product of its (nonzero) digits is 1032192, while the sum is 52.

The spelling of 8070206813881 in words is "eight trillion, seventy billion, two hundred six million, eight hundred thirteen thousand, eight hundred eighty-one".