87054075019 has 2 divisors, whose sum is σ = 87054075020. Its totient is φ = 87054075018.

The previous prime is 87054075011. The next prime is 87054075047. The reversal of 87054075019 is 91057045078.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87054075019 - 2³ = 87054075011 is a prime.

It is a super-2 number, since 2×87054075019² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87054075019.

It is not a weakly prime, because it can be changed into another prime (87054075011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43527037509 + 43527037510.

It is an arithmetic number, because the mean of its divisors is an integer number (43527037510).

Almost surely, 2^87054075019 is an apocalyptic number.

87054075019 is a deficient number, since it is larger than the sum of its proper divisors (1).

87054075019 is an equidigital number, since it uses as much as digits as its factorization.

87054075019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 87054075019 in words is "eighty-seven billion, fifty-four million, seventy-five thousand, nineteen".