1678856496 has 20 divisors (see below), whose sum is σ = 4337046072. Its totient is φ = 559618816.

The previous prime is 1678856489. The next prime is 1678856519. The reversal of 1678856496 is 6946588761.

It is a super-2 number, since 2×1678856496² = 5637118268322796032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17488041 + ... + 17488136.

Almost surely, 2^1678856496 is an apocalyptic number.

1678856496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1678856496 is an abundant number, since it is smaller than the sum of its proper divisors (2658189576).

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

1678856496 is a wasteful number, since it uses less digits than its factorization.

1678856496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34976188 (or 34976182 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 60.

The square root of 1678856496 is about 40973.8513688914. The cubic root of 1678856496 is about 1188.5146111387.

The spelling of 1678856496 in words is "one billion, six hundred seventy-eight million, eight hundred fifty-six thousand, four hundred ninety-six".