76645454838 has 16 divisors (see below), whose sum is σ = 153365239296. Its totient is φ = 25536096680.

The previous prime is 76645454827. The next prime is 76645454843. The reversal of 76645454838 is 83845454667.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3083658 + ... + 3108413.

It is an arithmetic number, because the mean of its divisors is an integer number (9585327456).

Almost surely, 2^76645454838 is an apocalyptic number.

76645454838 is an abundant number, since it is smaller than the sum of its proper divisors (76719784458).

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

76645454838 is a wasteful number, since it uses less digits than its factorization.

76645454838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6194139.

The product of its digits is 77414400, while the sum is 60.

The spelling of 76645454838 in words is "seventy-six billion, six hundred forty-five million, four hundred fifty-four thousand, eight hundred thirty-eight".