77445678282 has 32 divisors (see below), whose sum is σ = 179660769792. Its totient is φ = 21797077104.

The previous prime is 77445678259. The next prime is 77445678287. The reversal of 77445678282 is 28287654477.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77445678287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13757968 + ... + 13763595.

It is an arithmetic number, because the mean of its divisors is an integer number (5614399056).

Almost surely, 2^77445678282 is an apocalyptic number.

77445678282 is an abundant number, since it is smaller than the sum of its proper divisors (102215091510).

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

77445678282 is a wasteful number, since it uses less digits than its factorization.

77445678282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27521642.

The product of its digits is 42147840, while the sum is 60.

The spelling of 77445678282 in words is "seventy-seven billion, four hundred forty-five million, six hundred seventy-eight thousand, two hundred eighty-two".