77826935790 has 48 divisors (see below), whose sum is σ = 202369330800. Its totient is φ = 20751870336.

The previous prime is 77826935743. The next prime is 77826935801. The reversal of 77826935790 is 9753962877.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1074541 + ... + 1144679.

It is an arithmetic number, because the mean of its divisors is an integer number (4216027725).

Almost surely, 2^77826935790 is an apocalyptic number.

77826935790 is an abundant number, since it is smaller than the sum of its proper divisors (124542395010).

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

77826935790 is a wasteful number, since it uses less digits than its factorization.

77826935790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82481 (or 82478 counting only the distinct ones).

The product of its (nonzero) digits is 40007520, while the sum is 63.

The spelling of 77826935790 in words is "seventy-seven billion, eight hundred twenty-six million, nine hundred thirty-five thousand, seven hundred ninety".