8007871428749 has 2 divisors, whose sum is σ = 8007871428750. Its totient is φ = 8007871428748.

The previous prime is 8007871428743. The next prime is 8007871428761. The reversal of 8007871428749 is 9478241787008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6458170111849 + 1549701316900 = 2541293^2 + 1244870^2 .

It is a cyclic number.

It is not a de Polignac number, because 8007871428749 - 2⁸ = 8007871428493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8007871428743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4003935714374 + 4003935714375.

It is an arithmetic number, because the mean of its divisors is an integer number (4003935714375).

Almost surely, 2^{8007871428749} is an apocalyptic number.

It is an amenable number.

8007871428749 is a deficient number, since it is larger than the sum of its proper divisors (1).

8007871428749 is an equidigital number, since it uses as much as digits as its factorization.

8007871428749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50577408, while the sum is 65.

The spelling of 8007871428749 in words is "eight trillion, seven billion, eight hundred seventy-one million, four hundred twenty-eight thousand, seven hundred forty-nine".