77161062319 has 4 divisors (see below), whose sum is σ = 84175704360. Its totient is φ = 70146420280.

The previous prime is 77161062313. The next prime is 77161062359. The reversal of 77161062319 is 91326016177.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91326016177 = 11 ⋅8302365107.

It is a cyclic number.

It is not a de Polignac number, because 77161062319 - 2⁹ = 77161061807 is a prime.

It is a super-2 number, since 2×77161062319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77161062313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3507321004 + ... + 3507321025.

It is an arithmetic number, because the mean of its divisors is an integer number (21043926090).

Almost surely, 2^77161062319 is an apocalyptic number.

77161062319 is a deficient number, since it is larger than the sum of its proper divisors (7014642041).

77161062319 is a wasteful number, since it uses less digits than its factorization.

77161062319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7014642040.

The product of its (nonzero) digits is 95256, while the sum is 43.

The spelling of 77161062319 in words is "seventy-seven billion, one hundred sixty-one million, sixty-two thousand, three hundred nineteen".