7881012601213 has 4 divisors (see below), whose sum is σ = 7882016176188. Its totient is φ = 7880009026240.

The previous prime is 7881012601199. The next prime is 7881012601223. The reversal of 7881012601213 is 3121062101887.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 741145366404 + 7139867234809 = 860898^2 + 2672053^2 .

It is a cyclic number.

It is not a de Polignac number, because 7881012601213 - 2¹⁷ = 7881012470141 is a prime.

It is a super-2 number, since 2×7881012601213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7881012601223) 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, 501775708 + ... + 501791413.

It is an arithmetic number, because the mean of its divisors is an integer number (1970504044047).

Almost surely, 2^{7881012601213} is an apocalyptic number.

It is an amenable number.

7881012601213 is a deficient number, since it is larger than the sum of its proper divisors (1003574975).

7881012601213 is a wasteful number, since it uses less digits than its factorization.

7881012601213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003574974.

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 7881012601213 in words is "seven trillion, eight hundred eighty-one billion, twelve million, six hundred one thousand, two hundred thirteen".