77472613388 has 12 divisors (see below), whose sum is σ = 135597388920. Its totient is φ = 38730502272.

The previous prime is 77472613331. The next prime is 77472613397. The reversal of 77472613388 is 88331627477.

It is a super-3 number, since 3×77472613388³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421006 + ... + 1474517.

It is an arithmetic number, because the mean of its divisors is an integer number (11299782410).

Almost surely, 2^77472613388 is an apocalyptic number.

It is an amenable number.

77472613388 is a deficient number, since it is larger than the sum of its proper divisors (58124775532).

77472613388 is a wasteful number, since it uses less digits than its factorization.

77472613388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902216 (or 2902214 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 56.

The spelling of 77472613388 in words is "seventy-seven billion, four hundred seventy-two million, six hundred thirteen thousand, three hundred eighty-eight".