77530917080 has 16 divisors (see below), whose sum is σ = 174444563520. Its totient is φ = 31012366816.

The previous prime is 77530917041. The next prime is 77530917083. The reversal of 77530917080 is 8071903577.

It is a super-2 number, since 2×77530917080² (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 (77530917083) 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 3 ways as a sum of consecutive naturals, for example, 969136424 + ... + 969136503.

It is an arithmetic number, because the mean of its divisors is an integer number (10902785220).

Almost surely, 2^77530917080 is an apocalyptic number.

It is an amenable number.

77530917080 is an abundant number, since it is smaller than the sum of its proper divisors (96913646440).

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

77530917080 is a wasteful number, since it uses less digits than its factorization.

77530917080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938272938 (or 1938272934 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 47.

The spelling of 77530917080 in words is "seventy-seven billion, five hundred thirty million, nine hundred seventeen thousand, eighty".