1768064478 has 16 divisors (see below), whose sum is σ = 3650198016. Its totient is φ = 570343320.

The previous prime is 1768064461. The next prime is 1768064527. The reversal of 1768064478 is 8744608671.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1768064478.

It is a congruent number.

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, 4752676 + ... + 4753047.

It is an arithmetic number, because the mean of its divisors is an integer number (228137376).

Almost surely, 2^1768064478 is an apocalyptic number.

1768064478 is an abundant number, since it is smaller than the sum of its proper divisors (1882133538).

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

1768064478 is a wasteful number, since it uses less digits than its factorization.

1768064478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9505759.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 1768064478 is about 42048.3588026929. The cubic root of 1768064478 is about 1209.2034185092.

The spelling of 1768064478 in words is "one billion, seven hundred sixty-eight million, sixty-four thousand, four hundred seventy-eight".