87215150719 has 2 divisors, whose sum is σ = 87215150720. Its totient is φ = 87215150718.

The previous prime is 87215150713. The next prime is 87215150723. The reversal of 87215150719 is 91705151278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87215150719 - 2⁹ = 87215150207 is a prime.

It is a super-2 number, since 2×87215150719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87215150713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43607575359 + 43607575360.

It is an arithmetic number, because the mean of its divisors is an integer number (43607575360).

Almost surely, 2^87215150719 is an apocalyptic number.

87215150719 is a deficient number, since it is larger than the sum of its proper divisors (1).

87215150719 is an equidigital number, since it uses as much as digits as its factorization.

87215150719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 46.

The spelling of 87215150719 in words is "eighty-seven billion, two hundred fifteen million, one hundred fifty thousand, seven hundred nineteen".