772768891168 has 12 divisors (see below), whose sum is σ = 1521388754550. Its totient is φ = 386384445568.

The previous prime is 772768891127. The next prime is 772768891171. The reversal of 772768891168 is 861198867277.

It can be written as a sum of positive squares in only one way, i.e., 576828098064 + 195940793104 = 759492^2 + 442652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 772768891097 and 772768891106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12074513893 + ... + 12074513956.

Almost surely, 2^772768891168 is an apocalyptic number.

It is an amenable number.

772768891168 is a deficient number, since it is larger than the sum of its proper divisors (748619863382).

772768891168 is a wasteful number, since it uses less digits than its factorization.

772768891168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24149027859 (or 24149027851 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 70.

The spelling of 772768891168 in words is "seven hundred seventy-two billion, seven hundred sixty-eight million, eight hundred ninety-one thousand, one hundred sixty-eight".