87019933967 has 2 divisors, whose sum is σ = 87019933968. Its totient is φ = 87019933966.

The previous prime is 87019933909. The next prime is 87019933981. The reversal of 87019933967 is 76933991078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87019933967 - 2⁸ = 87019933711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87019933067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43509966983 + 43509966984.

It is an arithmetic number, because the mean of its divisors is an integer number (43509966984).

Almost surely, 2^87019933967 is an apocalyptic number.

87019933967 is a deficient number, since it is larger than the sum of its proper divisors (1).

87019933967 is an equidigital number, since it uses as much as digits as its factorization.

87019933967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15431472, while the sum is 62.

The spelling of 87019933967 in words is "eighty-seven billion, nineteen million, nine hundred thirty-three thousand, nine hundred sixty-seven".