77927850705 has 8 divisors (see below), whose sum is σ = 124684561152. Its totient is φ = 41561520368.

The previous prime is 77927850703. The next prime is 77927850727. The reversal of 77927850705 is 50705872977.

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

It is a cyclic number.

It is not a de Polignac number, because 77927850705 - 2¹ = 77927850703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77927850703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2597595009 + ... + 2597595038.

It is an arithmetic number, because the mean of its divisors is an integer number (15585570144).

Almost surely, 2^77927850705 is an apocalyptic number.

It is an amenable number.

77927850705 is a deficient number, since it is larger than the sum of its proper divisors (46756710447).

77927850705 is a wasteful number, since it uses less digits than its factorization.

77927850705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195190055.

The product of its (nonzero) digits is 8643600, while the sum is 57.

The spelling of 77927850705 in words is "seventy-seven billion, nine hundred twenty-seven million, eight hundred fifty thousand, seven hundred five".