75087616987 has 2 divisors, whose sum is σ = 75087616988. Its totient is φ = 75087616986.

The previous prime is 75087616973. The next prime is 75087616997. The reversal of 75087616987 is 78961678057.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75087616987 - 2¹¹ = 75087614939 is a prime.

It is not a weakly prime, because it can be changed into another prime (75087616927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37543808493 + 37543808494.

It is an arithmetic number, because the mean of its divisors is an integer number (37543808494).

Almost surely, 2^75087616987 is an apocalyptic number.

75087616987 is a deficient number, since it is larger than the sum of its proper divisors (1).

75087616987 is an equidigital number, since it uses as much as digits as its factorization.

75087616987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35562240, while the sum is 64.

The spelling of 75087616987 in words is "seventy-five billion, eighty-seven million, six hundred sixteen thousand, nine hundred eighty-seven".