56678351289 has 32 divisors (see below), whose sum is σ = 90292869120. Its totient is φ = 30979331856.

The previous prime is 56678351281. The next prime is 56678351329. The reversal of 56678351289 is 98215387665.

It is not a de Polignac number, because 56678351289 - 2³ = 56678351281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56678351281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144594 + ... + 366420.

It is an arithmetic number, because the mean of its divisors is an integer number (2821652160).

Almost surely, 2^56678351289 is an apocalyptic number.

It is an amenable number.

56678351289 is a deficient number, since it is larger than the sum of its proper divisors (33614517831).

56678351289 is an equidigital number, since it uses as much as digits as its factorization.

56678351289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221906 (or 221860 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 60.

The spelling of 56678351289 in words is "fifty-six billion, six hundred seventy-eight million, three hundred fifty-one thousand, two hundred eighty-nine".