77692613148 has 72 divisors (see below), whose sum is σ = 196981040256. Its totient is φ = 25819668000.

The previous prime is 77692613143. The next prime is 77692613149. The reversal of 77692613148 is 84131629677.

77692613148 is a `hidden beast` number, since 7 + 7 + 6 + 9 + 2 + 613 + 14 + 8 = 666.

It is a super-2 number, since 2×77692613148² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77692613094 and 77692613103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77692613143) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 30454473 + ... + 30457023.

Almost surely, 2^77692613148 is an apocalyptic number.

It is an amenable number.

77692613148 is an abundant number, since it is smaller than the sum of its proper divisors (119288427108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77692613148 is a wasteful number, since it uses less digits than its factorization.

77692613148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775 (or 4770 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 77692613148 in words is "seventy-seven billion, six hundred ninety-two million, six hundred thirteen thousand, one hundred forty-eight".