75606983987 has 2 divisors, whose sum is σ = 75606983988. Its totient is φ = 75606983986.

The previous prime is 75606983929. The next prime is 75606984059. The reversal of 75606983987 is 78938960657.

It is a weak prime.

It is an emirp because it is prime and its reverse (78938960657) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75606983987 - 2¹⁰ = 75606982963 is a prime.

It is a super-2 number, since 2×75606983987² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75606983927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37803491993 + 37803491994.

It is an arithmetic number, because the mean of its divisors is an integer number (37803491994).

Almost surely, 2^75606983987 is an apocalyptic number.

75606983987 is a deficient number, since it is larger than the sum of its proper divisors (1).

75606983987 is an equidigital number, since it uses as much as digits as its factorization.

75606983987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 137168640, while the sum is 68.

The spelling of 75606983987 in words is "seventy-five billion, six hundred six million, nine hundred eighty-three thousand, nine hundred eighty-seven".