87119478208531 has 2 divisors, whose sum is σ = 87119478208532. Its totient is φ = 87119478208530.

The previous prime is 87119478208471. The next prime is 87119478208561. The reversal of 87119478208531 is 13580287491178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87119478208531 - 2¹¹ = 87119478206483 is a prime.

It is a super-2 number, since 2×87119478208531² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87119478208561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43559739104265 + 43559739104266.

It is an arithmetic number, because the mean of its divisors is an integer number (43559739104266).

Almost surely, 2^{87119478208531} is an apocalyptic number.

87119478208531 is a deficient number, since it is larger than the sum of its proper divisors (1).

87119478208531 is an equidigital number, since it uses as much as digits as its factorization.

87119478208531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27095040, while the sum is 64.

The spelling of 87119478208531 in words is "eighty-seven trillion, one hundred nineteen billion, four hundred seventy-eight million, two hundred eight thousand, five hundred thirty-one".