87453867017779 has 2 divisors, whose sum is σ = 87453867017780. Its totient is φ = 87453867017778.

The previous prime is 87453867017761. The next prime is 87453867017801. The reversal of 87453867017779 is 97771076835478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87453867017779 - 2¹¹ = 87453867015731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87453867017699 and 87453867017708.

It is not a weakly prime, because it can be changed into another prime (87453867017879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43726933508889 + 43726933508890.

It is an arithmetic number, because the mean of its divisors is an integer number (43726933508890).

Almost surely, 2^{87453867017779} is an apocalyptic number.

87453867017779 is a deficient number, since it is larger than the sum of its proper divisors (1).

87453867017779 is an equidigital number, since it uses as much as digits as its factorization.

87453867017779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3485099520, while the sum is 79.

The spelling of 87453867017779 in words is "eighty-seven trillion, four hundred fifty-three billion, eight hundred sixty-seven million, seventeen thousand, seven hundred seventy-nine".