1678767464 has 16 divisors (see below), whose sum is σ = 3433842720. Its totient is φ = 763076080.

The previous prime is 1678767451. The next prime is 1678767469. The reversal of 1678767464 is 4647678761.

It is not an unprimeable number, because it can be changed into a prime (1678767469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9538364 + ... + 9538539.

It is an arithmetic number, because the mean of its divisors is an integer number (214615170).

Almost surely, 2^1678767464 is an apocalyptic number.

It is an amenable number.

1678767464 is an abundant number, since it is smaller than the sum of its proper divisors (1755075256).

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

1678767464 is a wasteful number, since it uses less digits than its factorization.

1678767464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19076920 (or 19076916 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 56.

The square root of 1678767464 is about 40972.7649054833. The cubic root of 1678767464 is about 1188.4936012621.

The spelling of 1678767464 in words is "one billion, six hundred seventy-eight million, seven hundred sixty-seven thousand, four hundred sixty-four".