77613428760 has 64 divisors (see below), whose sum is σ = 266103187200. Its totient is φ = 17740212096.

The previous prime is 77613428747. The next prime is 77613428771. The reversal of 77613428760 is 6782431677.

It is a happy number.

It is a super-3 number, since 3×77613428760³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

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, 46197630 + ... + 46199309.

It is an arithmetic number, because the mean of its divisors is an integer number (4157862300).

Almost surely, 2^77613428760 is an apocalyptic number.

77613428760 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

77613428760 is an abundant number, since it is smaller than the sum of its proper divisors (188489758440).

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

77613428760 is a wasteful number, since it uses less digits than its factorization.

77613428760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92396960 (or 92396956 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 77613428760 in words is "seventy-seven billion, six hundred thirteen million, four hundred twenty-eight thousand, seven hundred sixty".