1678047763 has 32 divisors (see below), whose sum is σ = 2022391808. Its totient is φ = 1362160800.

The previous prime is 1678047743. The next prime is 1678047779. The reversal of 1678047763 is 3677408761.

It is not a de Polignac number, because 1678047763 - 2²¹ = 1675950611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1678047743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3067456 + ... + 3068002.

It is an arithmetic number, because the mean of its divisors is an integer number (63199744).

Almost surely, 2^1678047763 is an apocalyptic number.

1678047763 is a deficient number, since it is larger than the sum of its proper divisors (344344045).

1678047763 is a wasteful number, since it uses less digits than its factorization.

1678047763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The square root of 1678047763 is about 40963.9812884441. The cubic root of 1678047763 is about 1188.3237380908.

The spelling of 1678047763 in words is "one billion, six hundred seventy-eight million, forty-seven thousand, seven hundred sixty-three".