77180302080 has 216 divisors, whose sum is σ = 305184096672. Its totient is φ = 17641193472.

The previous prime is 77180302057. The next prime is 77180302081. The reversal of 77180302080 is 8020308177.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (77180302081) 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, 397909 + ... + 559188.

Almost surely, 2^77180302080 is an apocalyptic number.

77180302080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

77180302080 is an abundant number, since it is smaller than the sum of its proper divisors (228003794592).

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

77180302080 is a wasteful number, since it uses less digits than its factorization.

77180302080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957131 (or 957114 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 77180302080 in words is "seventy-seven billion, one hundred eighty million, three hundred two thousand, eighty".