87453867017761 has 2 divisors, whose sum is σ = 87453867017762. Its totient is φ = 87453867017760.

The previous prime is 87453867017633. The next prime is 87453867017779. The reversal of 87453867017761 is 16771076835478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76232438992161 + 11221428025600 = 8731119^2 + 3349840^2 .

It is a cyclic number.

It is not a de Polignac number, because 87453867017761 - 2⁷ = 87453867017633 is a prime.

It is not a weakly prime, because it can be changed into another prime (87453867017261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43726933508880 + 43726933508881.

It is an arithmetic number, because the mean of its divisors is an integer number (43726933508881).

Almost surely, 2^{87453867017761} is an apocalyptic number.

It is an amenable number.

87453867017761 is a deficient number, since it is larger than the sum of its proper divisors (1).

87453867017761 is an equidigital number, since it uses as much as digits as its factorization.

87453867017761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331914240, while the sum is 70.

The spelling of 87453867017761 in words is "eighty-seven trillion, four hundred fifty-three billion, eight hundred sixty-seven million, seventeen thousand, seven hundred sixty-one".