8715556441381 has 2 divisors, whose sum is σ = 8715556441382. Its totient is φ = 8715556441380.

The previous prime is 8715556441283. The next prime is 8715556441393. The reversal of 8715556441381 is 1831446555178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4894935002500 + 3820621438881 = 2212450^2 + 1954641^2 .

It is a cyclic number.

It is not a de Polignac number, because 8715556441381 - 2¹³ = 8715556433189 is a prime.

It is a super-2 number, since 2×8715556441381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8715556444381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4357778220690 + 4357778220691.

It is an arithmetic number, because the mean of its divisors is an integer number (4357778220691).

Almost surely, 2^{8715556441381} is an apocalyptic number.

It is an amenable number.

8715556441381 is a deficient number, since it is larger than the sum of its proper divisors (1).

8715556441381 is an equidigital number, since it uses as much as digits as its factorization.

8715556441381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128000, while the sum is 58.

The spelling of 8715556441381 in words is "eight trillion, seven hundred fifteen billion, five hundred fifty-six million, four hundred forty-one thousand, three hundred eighty-one".