77800830050 has 24 divisors (see below), whose sum is σ = 145022134656. Its totient is φ = 31053108240.

The previous prime is 77800830049. The next prime is 77800830053. The reversal of 77800830050 is 5003800877.

It is a junction number, because it is equal to n+sod(n) for n = 77800829986 and 77800830013.

It is not an unprimeable number, because it can be changed into a prime (77800830053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1657214 + ... + 1703513.

It is an arithmetic number, because the mean of its divisors is an integer number (6042588944).

Almost surely, 2^77800830050 is an apocalyptic number.

77800830050 is a deficient number, since it is larger than the sum of its proper divisors (67221304606).

77800830050 is a wasteful number, since it uses less digits than its factorization.

77800830050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361202 (or 3361197 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 77800830050 in words is "seventy-seven billion, eight hundred million, eight hundred thirty thousand, fifty".