75527665979 has 2 divisors, whose sum is σ = 75527665980. Its totient is φ = 75527665978.

The previous prime is 75527665919. The next prime is 75527665981. The reversal of 75527665979 is 97956672557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75527665979 - 2³² = 71232698683 is a prime.

Together with 75527665981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75527665919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37763832989 + 37763832990.

It is an arithmetic number, because the mean of its divisors is an integer number (37763832990).

Almost surely, 2^75527665979 is an apocalyptic number.

75527665979 is a deficient number, since it is larger than the sum of its proper divisors (1).

75527665979 is an equidigital number, since it uses as much as digits as its factorization.

75527665979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 250047000, while the sum is 68.

The spelling of 75527665979 in words is "seventy-five billion, five hundred twenty-seven million, six hundred sixty-five thousand, nine hundred seventy-nine".