1678780883 has 8 divisors (see below), whose sum is σ = 1842030288. Its totient is φ = 1520404704.

The previous prime is 1678780861. The next prime is 1678780897. The reversal of 1678780883 is 3880878761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1678780883 - 2⁶ = 1678780819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1678780823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217585 + ... + 1218962.

It is an arithmetic number, because the mean of its divisors is an integer number (230253786).

Almost surely, 2^1678780883 is an apocalyptic number.

1678780883 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1678780883 is a deficient number, since it is larger than the sum of its proper divisors (163249405).

1678780883 is a wasteful number, since it uses less digits than its factorization.

1678780883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436613.

The product of its (nonzero) digits is 3612672, while the sum is 56.

The square root of 1678780883 is about 40972.9286602752. The cubic root of 1678780883 is about 1188.4967679411.

The spelling of 1678780883 in words is "one billion, six hundred seventy-eight million, seven hundred eighty thousand, eight hundred eighty-three".