7013381759981 has 2 divisors, whose sum is σ = 7013381759982. Its totient is φ = 7013381759980.

The previous prime is 7013381759963. The next prime is 7013381760013. The reversal of 7013381759981 is 1899571833107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6779618212900 + 233763547081 = 2603770^2 + 483491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7013381759981 is a prime.

It is a super-2 number, since 2×7013381759981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7013381759911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3506690879990 + 3506690879991.

It is an arithmetic number, because the mean of its divisors is an integer number (3506690879991).

Almost surely, 2^{7013381759981} is an apocalyptic number.

It is an amenable number.

7013381759981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7013381759981 is an equidigital number, since it uses as much as digits as its factorization.

7013381759981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 62.

The spelling of 7013381759981 in words is "seven trillion, thirteen billion, three hundred eighty-one million, seven hundred fifty-nine thousand, nine hundred eighty-one".