881456251507361 has 2 divisors, whose sum is σ = 881456251507362. Its totient is φ = 881456251507360.

The previous prime is 881456251507343. The next prime is 881456251507423. The reversal of 881456251507361 is 163705152654188.

It is a happy number.

It is an a-pointer prime, because the next prime (881456251507423) can be obtained adding 881456251507361 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472014948069025 + 409441303438336 = 21725905^2 + 20234656^2 .

It is a cyclic number.

It is not a de Polignac number, because 881456251507361 - 2⁶ = 881456251507297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 881456251507294 and 881456251507303.

It is not a weakly prime, because it can be changed into another prime (881456251507301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440728125753680 + 440728125753681.

It is an arithmetic number, because the mean of its divisors is an integer number (440728125753681).

Almost surely, 2^{881456251507361} is an apocalyptic number.

It is an amenable number.

881456251507361 is a deficient number, since it is larger than the sum of its proper divisors (1).

881456251507361 is an equidigital number, since it uses as much as digits as its factorization.

881456251507361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384000, while the sum is 62.

The spelling of 881456251507361 in words is "eight hundred eighty-one trillion, four hundred fifty-six billion, two hundred fifty-one million, five hundred seven thousand, three hundred sixty-one".