87142966243 has 2 divisors, whose sum is σ = 87142966244. Its totient is φ = 87142966242.

The previous prime is 87142966189. The next prime is 87142966277. The reversal of 87142966243 is 34266924178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87142966243 is a prime.

It is not a weakly prime, because it can be changed into another prime (87142966543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43571483121 + 43571483122.

It is an arithmetic number, because the mean of its divisors is an integer number (43571483122).

Almost surely, 2^87142966243 is an apocalyptic number.

87142966243 is a deficient number, since it is larger than the sum of its proper divisors (1).

87142966243 is an equidigital number, since it uses as much as digits as its factorization.

87142966243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 52.

The spelling of 87142966243 in words is "eighty-seven billion, one hundred forty-two million, nine hundred sixty-six thousand, two hundred forty-three".