8281715401 has 2 divisors, whose sum is σ = 8281715402. Its totient is φ = 8281715400.

The previous prime is 8281715399. The next prime is 8281715411. The reversal of 8281715401 is 1045171828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8252814025 + 28901376 = 90845^2 + 5376^2 .

It is a cyclic number.

It is not a de Polignac number, because 8281715401 - 2¹ = 8281715399 is a prime.

Together with 8281715399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8281715411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4140857700 + 4140857701.

It is an arithmetic number, because the mean of its divisors is an integer number (4140857701).

Almost surely, 2^8281715401 is an apocalyptic number.

It is an amenable number.

8281715401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8281715401 is an equidigital number, since it uses as much as digits as its factorization.

8281715401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 8281715401 is about 91003.9306898334. The cubic root of 8281715401 is about 2023.2059831862.

The spelling of 8281715401 in words is "eight billion, two hundred eighty-one million, seven hundred fifteen thousand, four hundred one".