3638140507 has 2 divisors, whose sum is σ = 3638140508. Its totient is φ = 3638140506.

The previous prime is 3638140459. The next prime is 3638140523. The reversal of 3638140507 is 7050418363.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3638140507 is a prime.

It is not a weakly prime, because it can be changed into another prime (3638140537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1819070253 + 1819070254.

It is an arithmetic number, because the mean of its divisors is an integer number (1819070254).

Almost surely, 2^3638140507 is an apocalyptic number.

3638140507 is a deficient number, since it is larger than the sum of its proper divisors (1).

3638140507 is an equidigital number, since it uses as much as digits as its factorization.

3638140507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 3638140507 is about 60317.0001492117. Note that the first 3 decimals coincide. The cubic root of 3638140507 is about 1538.0123492385.

The spelling of 3638140507 in words is "three billion, six hundred thirty-eight million, one hundred forty thousand, five hundred seven".