77018833950 has 48 divisors (see below), whose sum is σ = 191024440320. Its totient is φ = 20536449120.

The previous prime is 77018833943. The next prime is 77018833987. The reversal of 77018833950 is 5933881077.

It is a junction number, because it is equal to n+sod(n) for n = 77018833893 and 77018833902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2451441 + ... + 2482659.

It is an arithmetic number, because the mean of its divisors is an integer number (3979675840).

Almost surely, 2^77018833950 is an apocalyptic number.

77018833950 is an abundant number, since it is smaller than the sum of its proper divisors (114005606370).

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

77018833950 is a wasteful number, since it uses less digits than its factorization.

77018833950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47681 (or 47676 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 77018833950 in words is "seventy-seven billion, eighteen million, eight hundred thirty-three thousand, nine hundred fifty".