77527650097 has 4 divisors (see below), whose sum is σ = 77534118976. Its totient is φ = 77521181220.

The previous prime is 77527650089. The next prime is 77527650121. The reversal of 77527650097 is 79005672577.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79005672577 = 13 ⋅6077359429.

It is a cyclic number.

It is not a de Polignac number, because 77527650097 - 2³ = 77527650089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77527650077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3216429 + ... + 3240442.

It is an arithmetic number, because the mean of its divisors is an integer number (19383529744).

Almost surely, 2^77527650097 is an apocalyptic number.

It is an amenable number.

77527650097 is a deficient number, since it is larger than the sum of its proper divisors (6468879).

77527650097 is a wasteful number, since it uses less digits than its factorization.

77527650097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468878.

The product of its (nonzero) digits is 6482700, while the sum is 55.

The spelling of 77527650097 in words is "seventy-seven billion, five hundred twenty-seven million, six hundred fifty thousand, ninety-seven".