77486227236 has 96 divisors (see below), whose sum is σ = 221201487360. Its totient is φ = 23261191200.

The previous prime is 77486227219. The next prime is 77486227237. The reversal of 77486227236 is 63272268477.

It is a happy number.

77486227236 is a `hidden beast` number, since 7 + 7 + 4 + 8 + 622 + 7 + 2 + 3 + 6 = 666.

It is a super-2 number, since 2×77486227236² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (77486227237) 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 31 ways as a sum of consecutive naturals, for example, 177670 + ... + 431901.

It is an arithmetic number, because the mean of its divisors is an integer number (2304182160).

Almost surely, 2^77486227236 is an apocalyptic number.

It is an amenable number.

77486227236 is an abundant number, since it is smaller than the sum of its proper divisors (143715260124).

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

77486227236 is a wasteful number, since it uses less digits than its factorization.

77486227236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609702 (or 609694 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 54.

The spelling of 77486227236 in words is "seventy-seven billion, four hundred eighty-six million, two hundred twenty-seven thousand, two hundred thirty-six".