7982551013 has 2 divisors, whose sum is σ = 7982551014. Its totient is φ = 7982551012.

The previous prime is 7982551007. The next prime is 7982551037. The reversal of 7982551013 is 3101552897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6770327524 + 1212223489 = 82282^2 + 34817^2 .

It is a cyclic number.

It is not a de Polignac number, because 7982551013 - 2¹² = 7982546917 is a prime.

It is a super-2 number, since 2×7982551013² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7982551043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3991275506 + 3991275507.

It is an arithmetic number, because the mean of its divisors is an integer number (3991275507).

Almost surely, 2^7982551013 is an apocalyptic number.

It is an amenable number.

7982551013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7982551013 is an equidigital number, since it uses as much as digits as its factorization.

7982551013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 7982551013 is about 89345.1230510093. The cubic root of 7982551013 is about 1998.5448592895.

The spelling of 7982551013 in words is "seven billion, nine hundred eighty-two million, five hundred fifty-one thousand, thirteen".