5678520705 has 96 divisors (see below), whose sum is σ = 11846120832. Its totient is φ = 2479334400.

The previous prime is 5678520643. The next prime is 5678520719. The reversal of 5678520705 is 5070258765.

5678520705 is a `hidden beast` number, since 56 + 7 + 8 + 520 + 70 + 5 = 666.

It is not a de Polignac number, because 5678520705 - 2¹² = 5678516609 is a prime.

It is a super-2 number, since 2×5678520705² = 64491194794227394050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 253074 + ... + 274596.

It is an arithmetic number, because the mean of its divisors is an integer number (123397092).

Almost surely, 2^5678520705 is an apocalyptic number.

5678520705 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5678520705 is an abundant number, since it is smaller than the sum of its proper divisors (6167600127).

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

5678520705 is a wasteful number, since it uses less digits than its factorization.

5678520705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21599 (or 21596 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 45.

The square root of 5678520705 is about 75355.9599832687. The cubic root of 5678520705 is about 1784.0693734250.

The spelling of 5678520705 in words is "five billion, six hundred seventy-eight million, five hundred twenty thousand, seven hundred five".