77657035245 has 16 divisors (see below), whose sum is σ = 124488843072. Its totient is φ = 41337889920.

The previous prime is 77657035213. The next prime is 77657035307. The reversal of 77657035245 is 54253075677.

It is not a de Polignac number, because 77657035245 - 2⁵ = 77657035213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4941616 + ... + 4957305.

It is an arithmetic number, because the mean of its divisors is an integer number (7780552692).

Almost surely, 2^77657035245 is an apocalyptic number.

It is an amenable number.

77657035245 is a deficient number, since it is larger than the sum of its proper divisors (46831807827).

77657035245 is a wasteful number, since it uses less digits than its factorization.

77657035245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9899452.

The product of its (nonzero) digits is 6174000, while the sum is 51.

The spelling of 77657035245 in words is "seventy-seven billion, six hundred fifty-seven million, thirty-five thousand, two hundred forty-five".