77457917305 has 16 divisors (see below), whose sum is σ = 97532657280. Its totient is φ = 58941000448.

The previous prime is 77457917297. The next prime is 77457917311. The reversal of 77457917305 is 50371975477.

It is a cyclic number.

It is not a de Polignac number, because 77457917305 - 2³ = 77457917297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1860832 + ... + 1902001.

It is an arithmetic number, because the mean of its divisors is an integer number (6095791080).

Almost surely, 2^77457917305 is an apocalyptic number.

It is an amenable number.

77457917305 is a deficient number, since it is larger than the sum of its proper divisors (20074739975).

77457917305 is a wasteful number, since it uses less digits than its factorization.

77457917305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763040.

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

The spelling of 77457917305 in words is "seventy-seven billion, four hundred fifty-seven million, nine hundred seventeen thousand, three hundred five".