7880087872361 has 2 divisors, whose sum is σ = 7880087872362. Its totient is φ = 7880087872360.

The previous prime is 7880087872309. The next prime is 7880087872379. The reversal of 7880087872361 is 1632787800887.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6083469327961 + 1796618544400 = 2466469^2 + 1340380^2 .

It is a cyclic number.

It is not a de Polignac number, because 7880087872361 - 2¹⁴ = 7880087855977 is a prime.

It is a super-2 number, since 2×7880087872361² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7880087872661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3940043936180 + 3940043936181.

It is an arithmetic number, because the mean of its divisors is an integer number (3940043936181).

Almost surely, 2^{7880087872361} is an apocalyptic number.

It is an amenable number.

7880087872361 is a deficient number, since it is larger than the sum of its proper divisors (1).

7880087872361 is an equidigital number, since it uses as much as digits as its factorization.

7880087872361 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 7880087872361 in words is "seven trillion, eight hundred eighty billion, eighty-seven million, eight hundred seventy-two thousand, three hundred sixty-one".