77018730338 has 16 divisors (see below), whose sum is σ = 129104569440. Its totient is φ = 34154647200.

The previous prime is 77018730319. The next prime is 77018730343. The reversal of 77018730338 is 83303781077.

It is a junction number, because it is equal to n+sod(n) for n = 77018730292 and 77018730301.

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, 42692408 + ... + 42694211.

It is an arithmetic number, because the mean of its divisors is an integer number (8069035590).

Almost surely, 2^77018730338 is an apocalyptic number.

77018730338 is a deficient number, since it is larger than the sum of its proper divisors (52085839102).

77018730338 is a wasteful number, since it uses less digits than its factorization.

77018730338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85386673.

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 77018730338 in words is "seventy-seven billion, eighteen million, seven hundred thirty thousand, three hundred thirty-eight".