5638780370 has 16 divisors (see below), whose sum is σ = 10242924120. Its totient is φ = 2234818944.

The previous prime is 5638780363. The next prime is 5638780373. The reversal of 5638780370 is 730878365.

It can be written as a sum of positive squares in 4 ways, for example, as 5044834729 + 593945641 = 71027^2 + 24371^2 .

It is a super-2 number, since 2×5638780370² = 63591688122194673800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5638780373) 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, 2585507 + ... + 2587686.

Almost surely, 2^5638780370 is an apocalyptic number.

5638780370 is a deficient number, since it is larger than the sum of its proper divisors (4604143750).

5638780370 is a wasteful number, since it uses less digits than its factorization.

5638780370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173309.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 5638780370 is about 75091.8129358987. The cubic root of 5638780370 is about 1779.8977732395.

The spelling of 5638780370 in words is "five billion, six hundred thirty-eight million, seven hundred eighty thousand, three hundred seventy".