77304891160 has 96 divisors (see below), whose sum is σ = 202428117360. Its totient is φ = 26492169984.

The previous prime is 77304891151. The next prime is 77304891161. The reversal of 77304891160 is 6119840377.

It is a super-2 number, since 2×77304891160² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77304891160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77304891161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4846959 + ... + 4862881.

Almost surely, 2^77304891160 is an apocalyptic number.

77304891160 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77304891160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101214058680).

77304891160 is an abundant number, since it is smaller than the sum of its proper divisors (125123226200).

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

77304891160 is a wasteful number, since it uses less digits than its factorization.

77304891160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18425 (or 18414 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 77304891160 in words is "seventy-seven billion, three hundred four million, eight hundred ninety-one thousand, one hundred sixty".