77317667213127 has 32 divisors (see below), whose sum is σ = 113474815577856. Its totient is φ = 46437339379200.

The previous prime is 77317667213117. The next prime is 77317667213147. The reversal of 77317667213127 is 72131276671377.

It is not a de Polignac number, because 77317667213127 - 2¹² = 77317667209031 is a prime.

It is a super-2 number, since 2×77317667213127² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77317667213117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22607793 + ... + 25802085.

It is an arithmetic number, because the mean of its divisors is an integer number (3546087986808).

Almost surely, 2^{77317667213127} is an apocalyptic number.

77317667213127 is a deficient number, since it is larger than the sum of its proper divisors (36157148364729).

77317667213127 is a wasteful number, since it uses less digits than its factorization.

77317667213127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200911.

The product of its digits is 21781872, while the sum is 60.

The spelling of 77317667213127 in words is "seventy-seven trillion, three hundred seventeen billion, six hundred sixty-seven million, two hundred thirteen thousand, one hundred twenty-seven".