77396223057 has 8 divisors (see below), whose sum is σ = 103460248320. Its totient is φ = 51464839920.

The previous prime is 77396223031. The next prime is 77396223059. The reversal of 77396223057 is 75032269377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77396223057 - 2⁶ = 77396222993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77396223059) 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 7 ways as a sum of consecutive naturals, for example, 33159169 + ... + 33161502.

It is an arithmetic number, because the mean of its divisors is an integer number (12932531040).

Almost surely, 2^77396223057 is an apocalyptic number.

It is an amenable number.

77396223057 is a deficient number, since it is larger than the sum of its proper divisors (26064025263).

77396223057 is a wasteful number, since it uses less digits than its factorization.

77396223057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66321063.

The product of its (nonzero) digits is 3333960, while the sum is 51.

The spelling of 77396223057 in words is "seventy-seven billion, three hundred ninety-six million, two hundred twenty-three thousand, fifty-seven".